下列句子中划线成语使用不正确的一项是(2分)() A.面对美味大餐,我们却常有味

题型:选择题

问题:

下列句子中划线成语使用不正确的一项是(2分)     (       )

A.面对美味大餐,我们却常有味同嚼蜡的感觉,是物质生活过于丰富让我们无法选择, 还是我们的味觉麻木了呢?

B.某些食品生产经营企业鼠目寸光,只顾眼前利益,滥用食品添加剂以获取高额利润,严重危害了百姓健康。

C.与书为友能够让你获益匪浅,将不同的书视为自己的朋友,就能增长阅历,丰富思想,增添情趣。

D.微博上,不同群体表现出的特征各异:“70后”好为人师,制造深度话题;“80后”从不袖手旁观,参与度较高;“90后”则基本上是娱乐。

考点:成语歇后语,谚语,俗语
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给加粗字注音。

(    )  山(    )  头(     )   可汗(     )( )  (     )   

(    )   金(    )  鸣溅(    ) 云(    ) 战(    )   

(    )   红(    )  霍(    )  啾(    ) 机(    )  鞍鞯(        )

题型:选择题

阅读短文,选择正确答案。

       Once there was a boy in London. His name was Jimmy. He started painting when he was three years old,

and when he was five years old, he was already very good at it. He painted many beautiful and interesting

pictures, and a lot of people bought his pictures. They said, "This boy is going to be famous when he's a little

older, and then we're going to sell these pictures for a lot of money." 

       Jimmy's pictures were different from others' because he never painted on the whole of the paper. He

painted on half of it, and the other half was always empty. 

       "That's very clever," people said. "No other painters have ever done that!" 

       One day someone asked Jimmy, "Please tell me, Jimmy, why do you only paint on the bottom (底) half of

the paper, but not on the top half?" 

        "Because I'm small," Jimmy said, "and my brushes can't reach very high."

1. Where did Jimmy live? [ ]

A. In China.

B. In England.

C. In America.

D. In the USA.

2. When did he begin painting? [ ]

A. When he was three years old.

B. When he was five years old. 

C. When he was eight years old.

D. When he was ten years old.

3. What did Jimmy's pictures look like? [ ]

A. Beautiful.

B. Interesting. 

C. Bad

D. Beautiful and interesting.

4. Which part of paper did Jimmy paint? [ ]

A. The whole of the paper

B. The top half. 

C. The bottom half.

D. The middle part.

5. Why did Jimmy only paint half of the paper? [ ]

A. Because he was very clever.

B. Because he was very short. 

C. Because he was very tall.

D. Because he was very big.

题型:选择题

表面电极所记录的肌电图是()

A.单个运动单位的电变化

B.多个运动单位电变化的综合

C.单个或多个运动单位肌纤维收缩的张力变化

D.多向电位变化

E.肌肉兴奋时产生的动作电位变化

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患者女性,14岁。36kg,拟在局麻下行扁桃体摘除术。用2%利多卡因18ml作局部浸润,15分钟后,患者出现颜面苍白、意识恍惚、脉搏细弱。立即告其平卧,肌注肾上腺素1mg,地塞米松5mg,患者突然全身抽搐、末梢发绀、呼吸停止、心音听不清,经急救、复苏等处理2分钟后心跳、自主呼吸恢复,1小时后神志恢复正常。

导致患者出现异常反应的直接原因是

A.利多卡因的浓度过高,单次用量过大

B.麻醉选择不当

C.麻醉操作失误

D.手术操作不当

E.患者高度紧张

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回顾带电粒子或中性粒子是如何在气体电离室中产生载流子的,有哪些物理过程?

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