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【简答题】
测定中脉压的临床意义是什么?
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反馈参考答案：
举一反三
【单选题】When using a hand held smoke signal from a lifeboat, you should activate the signal _____.
A.
on the downwind side
B.
on the upwind side
C.
inside the boat
D.
at the stern
【单选题】When the ship was caught in a strong storm at the sea, the captain . ______a danger signal.
A.
sent for
B.
sent off
C.
sent out
D.
sent around
【单选题】In restricted visibility a towed vessel must sound a fog signal when it is ().
A.
the last vessel in the tow
B.
the last vessel in the tow and it is carrying a crew
C.
manned，regardless of its position in the tow
D.
None of the above are correct
【简答题】When a chemical signal binds to an intracellular receptorA. DNA produces mRNA. B. G proteins are activated. C. the receptor-hormone complex causes ion channels to open or close. D. the cell's response...
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