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【简答题】Reword the following sntences, using the present perfect tense.(用 现在完成时 改写下列句子,注意主谓一致) Example lt two months since he earned any money. ---He hasn't earned any money for two months. It's three weeks s...
【单选题】《规则》第二十条第4款的规定,同时显示号灯和号型的时间段为()。1能见度不良的白天;2日出前和日没后的晨昏蒙影期间。
A.
B.
C.
①②都对
D.
①②都不对
【简答题】按要求改写下列句子。 1.She has been working for 20 hours.(改为一般疑问句,并作否定回答) she working for 20 hours?No, . 2.I've been skating since l was six years old .(对画线部分提问) you been skating? 3.Tom ran for one hour.(用现在完成进...
【简答题】按要求改写下列句子 1. She has studied English for three years. (改为一般疑问句) ______ she______ English for three years? 2. My brother has been a tour guide for two years . (对画线部分提问) ______ your brother been a tour ...
【单选题】根据《规则》第二十条第4款的规定,同时显示号灯和号型的时间段为()。 ①能见度不良的白天; ②日出前和日没后的晨昏蒙影期间
A.
B.
C.
①②都对
D.
①②都不对
【简答题】II. Reword the following sentences, using the present perfect tense. (用现在完成时改写下列句子) Example It's two months since he earned any money. --> He hasn't earned any money for two months. 1 It's three weeks...
【简答题】用现在完成时改写下列句子。 It's three months since he wrote to me. I last saw him on hes wedding day. I was last paid six months ago.
【单选题】超声碎石机应用了什么原理?( )
A.
周期作用原理
B.
维数变化原理
C.
机械振动原理
D.
动态化原理
【简答题】按要求完成句子用现在完成时改写下列句子,使A,B两句意思基本一致。每空限填一词。 1. A. We came to our school in 1980. B. We ________ ________ ________ our school since 1980. 2.A. The old woman died four years ago. B. The old woman ________ ...
【简答题】根据括号中的要求改写下列句子。 1. He is going to Shanghai. (用现在完成时)  ______________________________________ 2. I heard about the news about the space travel. (改为同义句)  ______________________________________ 3. Scie...
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