一台还剩下5年使用寿命的机器能以20000美元的价格售出，其成本为100000美元，

连词成句。

1. Han Mei, have, at, lunch, not, school, does (.)

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2. a, our, is, classroom, of, that, picture (.)

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3. climb, you, must, tree, the, not (.)

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4. for, it's, English, time, lesson (.)

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5. up, o'clock, often, get, I, six, at (.)

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______ to frighten the poor man, Mrs. Richards quickly hid under stairs.

A．Not anxious

B．Anxious not

C．Being not anxious

D．Not being anxious

耳疖、耳疮的相同病因是：

A．风热邪毒外侵

B．肺经火热上扰

C．胃火炽盛

D．脾胃湿热上蒸

E．心火上炎

下列物质中属于多糖的是（）

A.糖元

B.蔗糖

C.麦芽糖

D.葡萄糖

E.果糖