题目内容
（请给出正确答案）
A．Alarm clocks are not allowed on board a plane.
B．The man had a time bomb in his suitcase.
C．The ticking of the alarm clock caused him a little trouble.
D．The airline official and the police officer played a joke on him.
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更多“A．Alarm clocks are not allowed…”相关的问题
The purpose of the passage is ()．
A． to introduce the culture of antique clocks
B． to offer some advice on collecting antique clocks
C． to compare different ways to make a future profit
D． to tell people that we are the slaves of clocks
M: I do it on purpose. I set this yellow clock ahead ten minutes, and this black one back ten minutes, but I always set that green one to the right time.
Q: What can we learn from the conversation？
(19)
A．The man has only two clocks in his bedroom.
B．The yellow clock keeps the right time.
C．The black clock is ten minutes slow.
D．The green clock is ten minutes ahead of time.
The benefit of biological clocks for humans is ______.
A．passengers can choose the flight time to adjust biological clocks
B．people may sleep at daytime for better biological clocks condition
C．shift workers can avoid their biological clock disorders
D．patients can get the best result by taking medicines at different time
A.If a clock source has an alarm sign, it will not join the selection.
B.Select clock source with highest quality level
C.if clocks have the same quality level, then select the one that traverses the minimum number of clock sources
D.If the clocks share the same quality level, traverse the same number of NEs and have no line alarm signs, then anyone of the clocks is OK.
A．Y
B．N
C．NG
A.are o
B.flash once per 1 s
C.flash once per 5 s
D.flash once per 0.5 s
By quoting (引用) the remark of a being from another planet, the author inter
A． suggest human beings are controlled by a clock
B． describe why clocks can rule the planet Earth
C． tell readers what clocks look like
D． compare clicks to human beings
A.for short
B.for all
C.for example
D.for instance
A) startling
B) surpassing
C) suppressing
D) stacking
The term biological clock is applied to the means, which living things 【M1】______
adjust their activity patterns, without any obvious cue, the time of day, or 【M2】______
the month, or the year. They are affected but little, if at all, by drugs,
chemical, or wide temperature differences—factors may alter substantially 【M3】______
the rates of all ordinary processes of the body.
The nature of the biological clocks mechanism is still a mystery. Two 【M4】______
quite different theories have been advanced to account to them. According 【M5】______
to the first of these theories, each individual have evolved, aided by natural
selection, an adaptation to the rhythmic environment. It has now 【M6】______
become independence on the environment. According to this view, the clocks 【M7】______
are not perfect timers. They require regular corrections by the natural light
and tide cycles and the changed lengths of the day throughout the year. 【M8】______
The other theory holds up living things react continuously to their 【M9】______
rhythmic physical environment. The setting of their biological clocks,
therefore, involves a constant adjustment to subtle clocks are potential 【M10】______
perfect timers.
【M1】
