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【简答题】
B 阅读下面短文,根据语境、音标或所给的提示,在每个空格内填入一个恰当的词 , 要求所填的词意义准确、形式正确,使短文意思完整、行文连贯。 My mother was telling me about how she and her family got their — 1 — (one) television when she was young . Of course, it was black — 2 — white. She said she only watched it 3 — night. She doesn't remember — 4 — (watch) it in the morning or afternoon. "When I was young we had only about 3 or 4 different channels ( 频道 ) . Sometimes m y brothers, my sisters and I would fight about which channel to watch. But we usually enjoyed — 5 — same shows." "Nowadays we can get — 6 — (hundred) of channels on TV. I can’t — 7 — / bɪˈliːv / it! There are channels with old movies, cooking, fishing and so on. I t’s amazing! There is a channel for everything. I — 8 — / ˈwʌndə(r) / how much my brothers, my sisters and I would fight if we had hundreds of channels when I was a child. These days I notice ( 注意到 ) families with 2 or more televisions in their homes. I guess it — 9 — / stɒps / people from arguing ( 争论 ) over which channel to choose. Children can watch their favorite channels 10 (happy). "
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举一反三
【多选题】有效使触电者脱离低压电源的主要方法有 ( )
A.
切断电源;
B.
割断电源线;
C.
挑拉电源线;
D.
拉开触电者;
【简答题】对风景名胜旅游资源的保护、开发和利用三者的关系应当是:开发是前提;保护是手段;利用是目的。( )
【单选题】若已定义 int a=5, 则表达式 a=(10,a+10,a++) 的值是 _______ 。
A.
5
B.
10
C.
11
D.
6
【多选题】使触电人脱离电源的主要方法有( )。
A.
用绝缘物移去带电导线
B.
直接用手拉开触电者
C.
拉开刀闸,切断电源
D.
用绝缘工具切断带电导线
【简答题】45o车刀的刀头强度和散热条件比90o车刀 ,常用于车削工件的端面、 。
【简答题】使触电者脱离电源的方法主要有拉、( ) 、挑、( ) 4 种方法。
【单选题】若已定义 int a=5, 则表达式 a=10,a+10,a++ 的值是 _______ 。
A.
5
B.
10
C.
11
D.
6
【判断题】脱离低压电源的主要方法有切断电源、割断电源线、挑拉电源线、拉开触电者、采取相应救护措施,采取以上措施时注意必须使用符合相应电压等级的绝缘工具。
A.
正确
B.
错误
【简答题】风景名胜旅游资源的保护、开发和利用三者的关系应当是:利用是前提,是基础;开发是手段;而保护则是目的。( )
【多选题】关于本学期葡萄糖浓度的定量检测,下列操作易导致实验结果有误的有( )
A.
没有对反应试管进行标记
B.
水浴保温后无需冷却就开始检测吸光度值
C.
分光光度计开机预热20分钟
D.
手拿比色杯的透光面
E.
加入比色杯的溶液不到比色杯高度的1/2
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