—"_____ you need bags for these books?"

题型:选择题

问题:

—"_____ you need bags for these books?"

—"No, I _____." [ ]

A. Do, don't

B. Can, can't

C. Are, aren't

D. Are, am not

考点:一般疑问句
题型:选择题

用所给单词的适当形式填空。

1. If you_________ (wear) jeans to the party, the teachers_________ (not let) you in.

2. We are going to the party if it_________ (not rain) tomorrow.

3. If he_________(help) me with my English, I_________(be) successful.

4. What_________(happen) if they miss the train?

5. I will call you up when I_________ ( come) back.

6. I_________ ( real) don't know how to take photos.

7. I want __________ ( go) fishing tomorrow.

8. You should _________( stay) at home and _______( study) .

9. We __________ ( go) _________ ( shop) if it_________ ( not rain) tomorrow.

10. When is a good time_________ ( fish)?

题型:选择题

(8分)为证明草本灰的主要成分是K2CO3,设计如下实验:

(1)提取碳酸钾晶体,可供选择的实验操作步骤有:

A.过滤;

B.溶解;

C.浓缩结晶;

D.蒸发;E.冷却结晶;F.萃取;G.蒸馏。按照操作顺序,应选择___________(写编号),在实验中都要用到的仪器是___________。(2)鉴定提取的晶体是碳酸钾______________________________________________。

题型:选择题

儿童乳磨牙龋坏,根管治疗后的处理是()。

A.充填治疗

B.金属嵌体

C.塑料全冠

D.金属全冠

题型:选择题

下列关于过滤流的说法不正确的是( )。

A.无限次

B.一次也不执行

C.执行一次

D.执行三次

题型:选择题

肿瘤的放射性胶体腔内治疗,适应证包括()

A.病理学检查证实有胸腹膜转移或积液中查见癌细胞

B.病情严重

C.有明显恶病质

D.体积小的包裹性积液

E.反复多次穿刺仍有积液,生存期3个月或3个月以上

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