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【单选题】
多点顶推施工的关键在于( )。A.
同步
B.
控制顶推的距离
C.
油表的控制
D.
推力
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举一反三
【简答题】句型转换，按括号的要求改写句子。 1. She found it interesting to listen to music.(同义句) She ______ ______ ______ music. 2. Maybe you can find it somewhere.(否定句) Perhaps you ______ ______ ______ ______. 3. You must look...
【简答题】Listen to the recording and answer the following questions. 听录音并回答以下问题。 What did you hear in the recording? (填阿拉伯数字) (1) cell phone messages. What festivals are mentioned in the recording? The Festiva...
【简答题】听短文，回答问题。 1. Where are Lucy and Lily form? A. China B. UK C. USA D. Canada 2. Where did they go this February? A. Beijing B. Guilin C. Hongkong D. Hangzhou 3. How was the weather on vacation? A. hot B...
【简答题】图中三极管为硅管, β =100 ,试求电路中 I B 、 I C 、 U CE 的值,判断三极管工作在什么状态。
【单选题】工化 3.1.3 下列哪个电子亚层可以容纳最多电子 ( )
A.
n ＝ 2 ， l ＝ 1
B.
n ＝ 3 ， l ＝ 2
C.
n ＝ 4 ， l ＝ 3
D.
n ＝ 5 ， l ＝ 0
【简答题】问: Did you hear the explosion last night? 你昨晚上听到爆炸声了吗? 答:( ) i did. 我确实听到了。
【简答题】Listen and choose. 听问句，选择最佳答语。 ( ) 1. A. Yes, I did. ( ) 2. A. He is often at home. ( ) 3. A. We did our homework. ( ) 4. A. She's 12 years old. ( ) 5. A. I'm sorry to hear that. B...
【简答题】阅读理解。 Frank bought a new doorbell, but nobody seemed to notice it. When his friends came, they knocked heavily at the door. Frank was not happy about it. One day a friend came to see Frank. He knocked...
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