Which series of Cisco routers is suitable for small businesses and for connecting small offices to enterprise networks？（）
小能力驼峰 small capacity of hump
The main engine is cooled with fresh water （）is added suitable small quantities of chemicals to prevent corrosion.
If a small electric motor is immersed in salt water it should be （） (1) washed in fresh water (2) dried in an oven
In a diesel engine, fuel must be broken up into a spray of fine droplets to （）.
Small floes of rough，hummocky sea ice capable of damaging a vessel（）.
Small oil spills on deck can be prevented from contaminating any waters by （）.
I have a small token of our gratitude（）
（） is the breakdown of surface tension between oil droplets in an oil water mixture which causes them to join and increase in size.
A yellow signal floating in the air from a small parachute，about 300 feet above the water，would indicate that a submarine（）.
You are anchoring in 16 fathoms of water．On a small to medium size vessel，the（）.
Coalescence is the breakdown of surface tension between oil droplets in an oil/water mixture, which causes them to join and （） in size.
A small light tackle with blocks of steel or wood that is used for miscellaneous small jobs is called a（）.
Penny-wise means being careful in dealing with small sums of money or small matters.
What type of words is the suffix “-en” generally added to?
Which of the following belong to the small intestine?
Cereal grains contain relatively small quantities of lipids, usually ().
Water of body are from（ ）。
A small number of firms have ceasedtrading（）
识别SD序列（Shine—Dalgarno sequences)的是（)。A．5'-end of 18S rRNAB．5'-end of 16S rRNAC．3'-en
The report says lack of water in the future may result in several problems. It may increase health problems. Lack of water often means drinking waters not safe. Mr. Engelman says there are problems all over the world because of diseases, such as cholera, which are carried in water. Lack of water may also result in more international conflict. Countries may have to compete for water in the future. Some countries now get sixty percent of their fresh water from other countries. This is true of Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. And the report says lack of water would affect the ability of developing to improve their economies. This is because new industries often need a large amount of water when they are beginning.
A 100 mL sample of water is titrated with 12. 24.mL. of the EDTA solution（0. 020 40 mol·L -1 ). Calculate the degree of hardness of the water.
Man depends on water for many things. He needs it for drinking. He needs it for growing food. He needs it for keeping himself clean and free from illness. He needs more and more water for industry. People often forget how necessary water is for industry. Imagine, for example, the immense quantities of water used by the great cooling towers of steel works. The demand for water is growing every day. It is closely connected with the increasing population and with the pressing problem of providing enough food. But the world has not yet found ways of storing enough water to satisfy all these important needs, not even in west countries like England. Great efforts are being made today to store water, particularly in hot countries where the rainfall is small.
请阅读短文，完成此题。When we analyze the salt salinity（盐溶度 ） of ocean waters, we find that it varies only slightly from place to place. Nevertheless, some of these small changes are important. There are three b
