"谷疸为病，寒热不食，食即头眩；心胸不安，久久发黄为谷疸"，治用（） A.硝石矾石散

选出与画线部分表达相一致的选项。

1. She couldn't catch up with the others in English.

A. fell behind

B. beat

C. can study better than

D. as well as

2. Then she asked me to drink much water.

A. few

B. lots of

C. a little

D. little

3. Would you like one more sandwich?

A. one

B. another

C. other

D. the other

4. Sanya is famous for its beach.

A. popular

B. interesting

C. well-known

D. wonderful

5. The ancient Olympic Games began in Greece in 776 BC.

A. modern

B. very old

C. new

D. long

下列铁的氧化物中，含铁量由高到低排列正确的一组是[ ]

A．FeO、Fe₂O₃、：Fe₃O₄

B．Fe₃O₄、FeO、Fe₂O₃

C．FeO、：Fe₃O₄、Fe₂O₃

D．Fe₂O₃、Fe₃O₄、FeO

合作伙伴模式20世纪80年代起源于( )。

A．美国

B．德国

C．英国

D．日本

放大电路如图18-5-25所示，已知U_cc=9V，β= 100，U_BE=0.6V，要使电路在静态时I_c=2mA，偏置电阻R_b应取（）。

A．450kΩ

B．210kΩ

C．420kΩ

D．280kΩ

支架预压施工的目的是（）。

A.消除支架的弹性变形

B.检验支架地基的承载力和稳定性

C.消除支架节点的弹性形变

D.消除支架地基的弹性形变