| To be a good teacher, you need some of
the gifts of a good actor: you must be able to hold the attention of your
audience; you must be a clever speaker, with good, strong, pleasing voice which
is fully under your control; and you must be able to act what you are teaching,
in order to make its meaning clear. The fact that a good teacher has some of the gifts of an actor doesn’t mean that he will indeed be able to act well on the stage, for there are very important differences between the teacher’s work and actor’s. The actor has to speak words which he has learnt by heart; he has to repeat exactly the same words each time he plays a certain part, even his movements and the ways in which he uses his voice are usually fixed beforehand. What he has to do is to make all these carefully learnt words and actions seem natural on the stage. A go A. The teacher must learn everything by heart. B. He knows to control his voice better than an actor. C. He has to deal with unexpected situations. D. He has to use more facial expressions. [单选题]直流电流对人体的效应与交流电流对人体的效应有所不同，直流电流的反应阈值约为（ ）。
A.1.5mA； B.2mA； C.0.1mA; D.0.5m [单选题]影响爆炸品敏感度的因素很多,决定性的内在因素是( )(0.5分)
A..化学组成和化学结构 B..高温 C..杂质 D..密度 [单项选择]以下药物中有关物质的检查方法：雌二醇（）.
A. 紫外分光光度法 B. 红外分光光度法 C. 气相色谱法 D. 薄层色谱法 E. 高效液相色谱法 [单选题]搬运脊柱骨折病人严禁使用软担架的原因是______。
A.使骨折加重,脊髓神经受损 B.造成颈部损伤 C.病人感觉到不舒服 [单项选择]关于颅内脊索瘤CT表现，下列哪项是错误的
A. 有散在斑块钙化影 B. 邻近骨质破坏 C. 无强化 D. 边界不规则 E. 边缘分叶或模糊不清 [单选题]业务及管理费是在企业日常活动中形成的,下列支出属于业务及管理费的有( )。
A.支付罚款的支出 B.业务招待费支出 C.对外捐赠支出 D.赞助费支出 我来回答: 提交
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