肺灌注显像注射显像剂的注意事项，以下正确的是（）。 A.注射时抽回血后再注入显像剂

根据括号内的汉语提示，补全句中所缺的单词。

1. Tom _______ (决定) to go swimming in the afternoon.

2. The air was _______ (充满) with our laughter.

3. Alex is very _______ (自豪的) of his parents.

4. Everything _______ (看上去) new and exciting to her.

5. Some are big. _______ (其他的) are small.

阅读下面的文字，按要求作文。（60分）

生活中，一定会有一闪而过却又在你脑海中留下深刻记忆的情景。请以“那一瞬间”为题，写一篇不少于800字的文章。

要求：立意自定；文体自选；不得抄袭。

I______you a beautiful present for your birthday,but I was short of money at that time.

A．would buy

B．had bought

C．would like to have bought

D．must have bought

在建立表间一对多的永久联系时，主表的索引类型必须是

A．主索引或候选索引

B．主索引、候选索引或唯一索引

C．主索引、候选索引、唯一索引或普通索引

D．可以不建立索引

男，45岁。车祸伤3小时，头痛、呕吐。CT发现颅内积气，诊断考虑（）.

A.颅内动脉瘤破裂

B.脑挫裂伤

C.脑震荡

D.弥漫性轴索损伤

E.颅底骨折