具有化湿解暑功效的药物是（）
A.苍术
B.佩兰
C.豆蔻
D.砂仁
E.草豆蔻
参考答案：B
光纤连接单模熔接损耗平均值为( )。
A．0.15dB B．0.2dB C．0.3dB D．0.55dB
用所给单词的适当形式填空.
1. We are ______ (surprise) at what he does.
2. Tom, someone _______ (wait) for you in your office.
3. — Where _______ David ______ (swim)?
— I can't find him.
4. We have fun _______ (talk) .
5. The zoo is a good place _______ (have) fun.
