题目内容

【判断题】在强直收缩中,骨骼肌的动作电位会发生叠加或总和。

A. 对
B. 错

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Smilingandlaughinghas actuallybeenshowntorelieve __________ andstress.

A. suburb
B. tension
C. substance
D. talent

Smoking was recognized by many people as a slightly dirty and __________ habit.

A. unpleasant
B. unpleased
C. pleasant
D. pleased

So many hotels __________ each other.

A. substract
B. resemble
C. vanish
D. import

Take out accident __________ before you go on your trip.

A. insurance
B. ingredient
C. fate
D. legislation

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