亚硝态氮nitritenitrogen

属于行为疗法的是（）

A.自由联想

B.森田疗法

C.以人为中心疗法

D.系统脱敏疗法

E.认知疗法

某大学将在赵、钱、孙、李、周、吴等6位同学中选拔三位参加全国大学生数学建模竞赛。通过一段时间的训练考察，老师们对这6位同学形成如下共识： (1) 不选拔赵； (2) 或者选拔孙，或者不选拔钱； (3) 如果选拔李，则不选拔周； (4) 赵、钱、周中至少有一个被选拔山来； (5) 如果不选拔赵，则一定是选拔李； (6) 选拔孙，或者选拔吴。 据此，可以推出( )。

A．选拔赵、钱、孙

B．选拔钱、孙、李

C．选拔孙、李、吴

D．选拔李、周、吴

()规定：“消防安全重点单位应当制定灭火和应急疏散预案，定期组织消防演练。”

A.《安全生产法》

B.《中华人民共和国劳动法》

C.《安全生产条例》

D.《中华人民共和国消防法》

Did you ever have someone’s name on the tip of your tongue and yet you were unable to recall it (1) this happens again, do no (2) to recall it. Do something (3) for a couple of minutes, (4) the name may come into your head. The name is there since you have met (5) person and his name. It (6) has to be dug out. The initial effort to recall (7) the mind for operation, but it is the subconscious (8) that go to work to dig up a (9) memory. Forcing yourself to recall (10) never helps because it doesn’t (11) your memory；it only tightens it. Students find the preparatory method help (12) examinations. They read over the questions (13) trying to answer any of them. (14) they answer first the ones (15) which they are most confident. Meanwhile, deeper mental activities in the subconscious mind are taking (16) ; work is being done on the (17) difficult questions. By the time the easier questions are answered, answers (18) the more difficult ones will usually begin to (19) into consciousness. It is often (20) a question of waiting for recall to come to the memory.

9（）

A.light

B.fresh

C.dim

D.dark

球类运动常用的动作示范方式为（）

A.正面示范

B.背面示范

C.侧面示范

D.镜面示范