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问题 单项选择题

木材的纤维饱和点是指木材的( )。

A．物理力学性质发生改变的含水率临界点
B．内部充满自由水和吸附水时的含水率
C．体积开始发生膨胀时的含水率
D．含水率影响其强度变化的最低临界值

答案

参考答案：A

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Social skills are important in daily life .You shouldn’t a___小题1:____    talking to someone you recognize .People like a man who can talk     小题2:  (自信地) to every guest at a party . And you won’t make more friends if you    小题3:  (缺乏) the c  小题4:   to talk to people you don’t know . So you must learn small talk .

Before having a conversation , you’d better do a little a____小题5:___ planning. Having some low-risk conversation openers ready . For example ,think of a recent news story---not too serious. That way, you don’t damage your confidence . And always remember , communication i   小题6:   speaking and listening , because you won’t i   小题7:    people if you talk too much . You should show people that you are listening by your reaction such as keeping good eye     小题8:   (接触). Don’t    小题9:  (把目光从……移开) the person who’s talking to you .Don’t change the subject if you go to a ___小题10:     (社交场合) in another country , remember that social rules can be different .
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单项选择题

下列中成药中属妊娠禁用的是( )。

A．牛黄上清丸
B．附子理中丸
C．安宫牛黄丸
D．舒肝丸
E．梅花点舌丸
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