选用的井下电气设备，必须符合（）。A、防爆要求 B、保护要求 C、煤矿安全规程要求 D、供

这些大灾大难，让我们对于生命的逝去、家园的______，有着______的疼痛；对于危难时刻各界力量驰援所带来的温暖，我们也会有着发自肺腑的感激；而对于“自然灾难面前的人类共同命运”，我们更有深刻真切的______。
依次填入划横线部分最恰当的一项是( )。

A．破碎 身临其境 体会
B．摧毁 锥心刺骨 感悟
C．消失 感同身受 思索
D．沦陷 刻骨铭心 印象

2013的质因数中，最大的质因数与最小的质因数的乘积是______．

检查肌张力时要求

A．肌肉无萎缩

B．肌肉无瘫痪

C．肌肉放松

D．神志清楚

E．无感觉障碍

Sometimes we have specific problems with our mother; sometimes, life with her can just be hard work. If there are difficulties in your (1) , it’s best to deal with them, (2) remember that any (3) should be done (4) person or by letter. The telephone is not a good (5) because it is too easy (6) either side to (7) the conversation.

Explain to her (8) you find difficult in your relationship and then (9) some new arrangements that you think would establish a (10) balance between you. Sometimes we hold (11) from establishing such boundaries because we are afraid that doing (12) implies we are (13) her. We need to remember that being (14) from our mother does not (15) mean that we no longer love her. If the conflict is (16) and you cannot find a way to (17) it, you might decide to give up your relationship with your mother for a while. Some of my patients had (18) "trial separations". The (19) allowed things to simmer down, enabling (20) .

15（）

A.instantly

B.reluctantly

C.necessarily

D.steadily

在科研不端行为的（）上主要是对已实施了科研不端行为的人员予以严厉的惩罚措施，不仅包括学术上、道德上的惩罚，还包括法律上的惩罚措施。

A.一般预防

B.特殊预防

C.一般规范

D.特殊规范