( )是固定资产在建总规模与年度投资完成额的比值。A．投资效益系数 B．建设周期

根据下列句子及所给汉语注释，写出空缺处各单词的正确形式。（每空只写一词）

1. A crowd soon collected at the __________(现场) of the accident.

2. The mother ______ (斥责) the boy for not cleaning up his room.

3. Before entering a house in some ______(亚洲) countries, it is good manners to take off your shoes.

4. The animals were left to______(挨饿) to death.

5. He came to miss his homeland when he settled down_____(国外).

6. Please give him my ______(祝贺) when you see him.

7. The shops are in the ______ (中心) position in the city.

8. If today is______(星期三), the day before yesterday was Monday.

9. His father ordered that he keep a ______(日记) in English.

10. Our country has ______ (经历) great changes in the last thirty years.

七叶苷水解试验中，与七叶素反应的离子是（）。

A.Cu²⁺

B.Mn²⁺

C.Fe²⁺

D.NH₄⁺

E.Ag⁺

失活剂导致牙周组织烧伤的处理如下，除外（）

A.完整地取出失活剂

B.去坏死组织和死骨

C.大量生理盐水冲洗

D.干燥创面涂敷碘剂

E.不需定时换药

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