The disease caused by listeria()
A.is linked to poultry products cooked enough
B.is especially dangerous not only to newborn babies but also to people with weakened defenses
C.is not dangerous
D.is dangerous only to pregnant women and newborn babies
时间:2023-09-03 16:43:20
相似题目
-
Which of the items listed causes a direct acting mechanical governor to operate the engine fuel control linkage?()
A . Hydraulic oil pressure
B . Servomotor action
C . Flyweight centrifugal force
D . Relay motio
-
Which of the listed conditions can cause lacquer to be deposited on a piston skirt?()
A . High sulphur content fuel
B . High lube oil temperatures
C . High vanadium content fuel
D . Excessive piston sla
-
If the cause of a sudden severe list is negative initial stability,counterflooding into empty tanks may().
A . increase the righting moment
B . cause an increase in the righting arm
C . bring the vessel to an upright equilibrium position
D . cause the vessel to flop to a greater angle
-
Electrical failures in motors are caused by the breakdown of insulation, which may be caused by ()
A . penetration of moisture
B . accumulation of dirt
C . overheating
D . All of the above
-
The set of the ocean current is caused by().
A . density differences of the water
B . rotation of the earth
C . direction of primary circulation of air
D . all of the above
-
If the cause of severe list or trim is off-center ballast,counterflooding into empty tanks will().
A . increase the righting moment
B . increase the righting arm
C . increase list or trim
D . decrease list or trim
-
Which of the conditions listed would cause simultaneous high cylinder firing pressure and low exhaust temperature?()
A . Improper fuel rack positioning
B . Lengthy opening of the exhaust valve
C . Excessively early injection timing
D . Extended light load operatio
-
User2 is complaining that he is unable to list the contents of a directory. What is the most likely cause?()
A . User2 needs write permission to the directory.
B . User2 needs both read and write permissions to the directory.
C . User2 needs both read and execute permissions to the directory.
D . User2 needs both write and execute permissions to the directory.
-
When lighting off an auxiliary boiler, which of the problems listed could cause the burners to sputter?()
A . cold fuel oil
B . low fuel oil pressure
C . low atomizing steam pressure
D . water in the fuel oil
-
Your vessel has just finished bunkering and has a small list due to improper distribution of the fuel oil. This list will cause().
A . a decrease in reserve buoyancy
B . a decrease in the maximum draft
C . the vessel to flop to port or starboard
D . None of the above
-
The()accident was caused by your ship.
A . sailing
B . damaged
C . sounded
D . abovementioned
-
Which of the listed operations will cause an automatically controlled refrigeration compressor to restart?()
A . Closing of the solenoid valve
B . Closing of the expansion valve
C . An increase in the suction pressure
D . Decreasing the suction pressure
-
The emulsion of the oil is mainly caused by ().
A . the solid impurities of large particle
B . the solid impurities of fine particle
C . the water content
D . both water and solid impuritie
-
Special extraneous risks mean risks caused by theft, rain, leakage, shortage, breakage, dampness, mildewing (a plant disease caused by fungi), heating, taint of odor, hooking, and rusting.
-
What are the causes of unhappiness? List at least three causes.
-
The author listed three factors that have caused road accidents, including ________.
-
It is likely that, at some point in the near future, cancer will()heart disease as the leading cause of death in the united states。
-
Knowing the true cause of the disease, many Christians considered the Black Death a signal of the Last Judgment.()
此题为判断题(对,错)。
-
AIDS is causing great public concern because the_____fatal disease hits primarily young people.
A.invariably
B.imperatively
C.transiently
D.deceptively
-
It is postulated that a cure for the disease willhave been found by the year 2000.
A. challenged
B. assumed
C. deducted
D. decreed
-
Which of the following diseases is caused by a vitamin deficiency?
A.Lobar pneumonia.
B.Tertiary syphilis.
C.Chronic tuberculosis.
D.Pernicious anemia.
-
According to the study by the Institute of Psychology in Stockholm, overwork is likely to induce some diseases.
A.Y
B.N
C.NG
-
Scientists have established that influenza viruses taken from man can cause the disease in animals. In addition, man can catch the disease from animals. In fact, a great number of wild birds seem to carry the virus without showing an evidence of illness. Some scientists concluded that a large family of influenza viruses may have evolved in the bird kingdom, a group that has been on the earth 100 million years and is able to carry the virus without contracting the disease. There is even convincing evidence to show that virus strains are transmitted from place to place and from continent to continent by migrating birds.
It's known that two influenza viruses can recombine when both are present in an animal at the same time, the result of such recombination is a great variety of strains containing different H and N spikes. This raises the possibility that a human influenza virus can recombine with an influenza virus from a low animal to produce an entirely new spike. Research is underway to determine if that is the way that major new strains come into being, another possibility is that two animal influenza strains may recombine in a pig, for example, to produce a new strain which is transmitted to man.
According to the passage, scientists have discovered that influenza viruses ______.
A.cause ill health in wild birds
B.do not always cause symptoms in birds
C.are rarely present in wild birds
D.change when transferred from animals to man
-
The rejection of the Impressionist exhibition by critlies was caused by which of the following?
A.The small number of paintings on display
B.Lack of interest in exhibitions by young artists
C.The similarity between all the paintings exhibited
D.Anger about seemingly poorly painted art
-
From the data collected by the CDC () , the persons at risk are Elderly persons above the age of 50 persons with underlying diseases like diabetes, Parkinson’s disease, cardiovascular diseases.