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很多化学元素在人们生命活动中起着重要作用,缺少它们,人将会生病。例如儿童常患的软骨病是由于缺少:
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【简答题】When you travel in HongKong , you must be careful of the traffic rules , because the traffic keeps to the left and it’s d ifferent from that of the interior (内地) of China . Before crossing the street ...
【简答题】A．The man was driving too fast. B．The man did not pay attention to the traffic lights. C．The woman had jumped the traffic lights. D．The woman was talking while driving.
【单选题】The traffic lights were red when the driver reached them. To the surprise of his passenger, the car did not slow down. Unexpectedly the passenger was thrown forward in the vehicle as the driver put on...
A.
at the bottom
B.
in the middle
C.
at the top
D.
below the green light
【单选题】—What if we don't follow the traffic lights or the traffic police? —It _______ dangerous. [ ]
A.
has
B.
could be
C.
can have
D.
could have
【多选题】钢筋混凝土受弯构件的第二工作阶段又可称为开裂后弹性阶段，对于第二工作阶段的计算，一般有下面（ ）三项基本假定
A.
平截面假定
B.
弹性体假定
C.
受拉区混凝土完全不能承受拉应力
D.
以上都不对
【单选题】The driver ____at the crossroads as the traffic lights flashed red.
A.
pulled off
B.
pulled up
C.
pulled round
D.
pulled over
【单选题】What did the man tell the woman?
A.
The shop was closed.
B.
The traffic lights were red.
C.
The driver was drunk.
【单选题】The traffic lights were red when the motorist moved to them. To the surprise of this passenger the car did not slow down. Suddenly the passenger was thrown forward in the car as the driver stopped it ...
A.
to see red traffic lights
B.
not to notice the traffic lights
C.
to be color blind
D.
not to see the red traffic lights
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