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When whistle signals are used for launching lifeboats，one short blast means（）.
A . use the float-free method only
B . lower all boats
C . raise all boats
D . drill is over，secure all boat
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Vessels shall be deemed to be in sight of one another only when one（）from the other.
A . can be observed visually
B . can be observed by radar
C . can be located on the radar
D . can be heard
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The apparent wind’s speed can be zero only when two conditions are present. One condition is that the true wind（）.
A . must be from dead ahead
B . speed must be zero
C . must be from dead astern
D . must be on the beam
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When configuring system state conditions with the Cisco SecurityAgent， what is the resulting action when configuring more than one system state condition？ （）
A . Any matching state condition will result with the state being triggered
B . Once a state condition ismet， the system ceases searching further conditions and will cause the state condition to trigger
C . All specified state conditions are used as part of the requirements tobe met to for the state to trigger
D . Once the state conditions are met， they become persistent and can only be removed using the Reset feature
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Could mother Earth feel sharp pain when herdsmen settled down one place?
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One’s perception is shaped by one’s culture.
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Many Chinese speakers will reject the compliment when they receive one.
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When the question ______ at the meeting, no one could answer it.
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Why was the husband excited when he came home one day?
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What happens when one of the robots breaks down?
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When using PowerPoint slides, you should try to limit slides to one every minute.
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When one has good health, _____ should feel fortunate.
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When talk about a seaside resort ,which one you should introduce second?
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If one wants to deal with problems fairly, one should try to avoid being _____ when looking at these problems.
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What happened one day when the author was taking a taxi?
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Employees may never feel confused when sharing one job.
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"It tells you how to find your way when you get lost.But it’s all right. I'll get another one in London." is said by().
A、Pocahontas' dad
B、Pocahontas
C、John Smith
D、Grandma Willow
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One is more likely to knit his eyebrows when presented with
A．to laugh.
B．to frown.
C．funny.
D．frustrating.
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Only when one______the powerful current of the times will one's life shine brilliantly.
A．dips into
B．comes into
C．drops into
D．plunges into
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听力原文： An explosion in a Pennsylvania coal mine killed one worker Monday, but five other miners escaped. The blast went off 2,300 feet underground at the R&D coal mine in Schuylkill County. Some officials say it appears a blast went off in the anthracite mine when workers detonated the explosives, but that’s still under investigation.
The process right now is to continue the interviews and then get back down underground and complete the inspections and in that way we can complete the investigation as to what happened.
The brother-in-law of the miner killed says 43-year-old Dlae Reightler worked at the mine since he was a teenager and that he dreamed of moving his wife and four children, setting up an auto-repair business.
He did it all his life. He did that and worked on cars in his garage backyard. He enjoyed doing that stuff.
At the mine, the accident knocked out the ventilation system, making it too dangerous for investigators to go down into the mine shaft. Regulators ordered the facility closed until the investigation is complete. The area has the nation’s only deposits of anthracite, a type of hard, clean burning coal. A June inspection of the site turned up no violations and violations detected in August were fixed on site.
The investigation was dangerous because ______.
A．the mine was badly damaged
B．the ventilation system was broken
C．the mine was too deep
D．the safety facility was destroyed
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When things far away seem blurry, one is probably（）
A．near-sighted
B．far-sighted
C．astigmatic
D．suffering from cataracts
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One of the girl students____when the teacher came in.
A、has sung
B、have sung
C、were singing
D、was singing
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The doctor _a tube in the patient’s nose for oxygen（）
A．inserted
B．reversed
C．guaranteed
D．survived
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The himalayan allele in rabbits produces dark fur at the extremities of the body—on the nose, ears, and feet. The dark pigment develops, however, only when a rabbit is reared at a temperature of 25°C
A．temperature-sensitive allele
B．dominance
C．discontinuous characteristic
D．genetic imprinting
E．phenocopy
