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【单选题】
成人应尽早培养幼儿正确的睡姿,其主要内容包括1不用手压着心脏、腹部、头脸。2用鼻呼吸,不用嘴呼吸。3不睡。4睡眠以左侧睡和平睡为宜。A.
①②③
B.
①②
C.
①③④
D.
②③④
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皮皮学刷刷变学霸
举一反三
【单选题】在Hagenuk电/液伺服器中，先导泵打出油压的作用是（）。
A.
推动动力活塞移动，进行加、减油
B.
使主阀跟踪先导阀运动
C.
加速较快时维持动力油压恒定
D.
保持主阀相对输出油口位置不变
【单选题】—May I speak to Mr. Green? —Sorry, he _____ to Beijing. He hasn't been back yet. [ ]
A.
goes
B.
has been
C.
has gone
【简答题】同义句转换 l. I can't wait to visit Beijing. I'm _____ _____ _____ visiting Beijing. 2. I wear a coat. Its colour is blue. I am _____ _____ _____ coat. 3. Jack's grandfather doesn't know how he could use ...
【单选题】He ___ to Beijing. I saw him only a while ago.
A.
cannot have gone
B.
might not have gone
C.
couldn't go
D.
must not have gone
【单选题】Which of the following is RIGHT? [ ]
A.
He very likes English.
B.
He already has gone to Beijing.
C.
I always listen to the teachers carefully in class.
D.
They had lunch yesterday in a restaurant.
【单选题】-Where is Jim? I can’t find him. -Oh, he to Beijing.
A.
has been to
B.
has gone to
C.
went
D.
was to
【单选题】Neither he nor I ()to Beijing.
A.
have been
B.
has been
C.
haven’t been
D.
hasn’t been
【简答题】【语法专练】 一、把下列两个句子连接成含有宾语从句的主从复合句。 1.“There will be a sports meeting next week,”our teacher says. 2.He can get well soon.I hope. 3.The boy runs the fastest in our school.I think. 4.He wants to travel to...
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