下列关于建筑制图的线型及其应用的说法中，正确的是（）。 A.平、剖面图中被剖切的主要

电磁除铁器建立的必须是（）强磁场。

A.恒定

B.非恒定

C.非匀

用所给词的适当形式填空。

1.We should learn from _______(hero).

2.I would like ________(help)her teach our English class.

3.She asked me ________(make) an example of a crossword puzzle.

4.He ________ never ________(tell) me the story before.

5.The vegetables ________(eat) up by the sheep just now.

6.Look, the boy ________(tie) his shoes over there.

7.My mother ________(cook) when my father was reading newspaper.

8.There ________(be) a class meeting this evening.

9.My father often ________(drive) to work.

10.Danny ________(live) in China for three years.

( )不属于宗地变更的范畴。

A．图形变更

B．图形与属性同时变更

C．权属调查变更

D．宗地属性变更

一般来说，领导方式的基本类型有三种，下列分类正确的是( )。

A．专权型领导、有限专权型领导、民主型领导
B．专权型领导、民主型领导、限民主型领导
C．专权型领导、民主型型领导、放任型领导
D．专权型领导、有限集权型领导、放任自由型型领导

给付定金的一方不履行约定的债务的，无权要求返还定金；收受定金的一方不履行约定的债务的，应当双倍返还定金