下列说法正确的是[ ] A.一个代数式只有一个值 B.代数式中的字母可以取任意的

题型:选择题

问题:

下列说法正确的是[ ]

A.一个代数式只有一个值

B.代数式中的字母可以取任意的数值

C.一个代数式的值与代数式中字母所取的值无关

D.一个代数式的值由代数式中字母所取的值确定

考点:代数式的概念
题型:选择题

课文填空。

1. You'll find your colleagues very ______ you, so you may be able to concentrate on photography later if

     you're interested.

2. A footballer was ______ taking money for deliberately not scoring goals so as to let the other team win.

3. We went to interview him. He ______ taking money but we were skeptical.

4. My first assignment was as an assistant to a famous fashion photographer, who was going to take photos

    of a model ______ Wang Li.

5. She was lying in her front garden ______. Her hands had almost been cut off.

6. He slowed the bleeding by ______ the wounds until the police and ambulance arrived.

7. The tree was planted near the church fifty years ago, but it is only in recent years that it has ______.

8. Since then, he has ______. As soon as he opens the gate from the outside, he comes into the garden and 

    waits until the gate shuts.

9. Yesterday my husband removed the gate and Rex ______ we have not seen him since.

10. The moment you leave this tent, you'll get ______.

题型:选择题

下列配伍变化的处理方法中,正确的有()。

A.改变贮存条件

B.改变调配次序

C.添加溶剂或助溶剂

D.调整溶液pH

E.改变有效成分或改变剂型

题型:选择题

分化型甲状腺癌转移灶经临床治疗后131I显像阴性,而18F-FDG显像阳性,提示()

A.预后好

B.癌细胞碘代谢活跃

C.癌细胞分化程度低

D.癌细胞糖代谢降低

E.癌细胞乏氧

题型:选择题

新买的纯棉背心、汗衫,用()浸洗后再穿,可耐磨且不褪色。

题型:选择题

出现食物中毒症状或者误食化学药品时,最先采取的急救措施是()。

A.催吐

B.吃止泻药物

C.进行人工呼吸

D.向卫生防疫部门报告

更多题库