皮皮学，免费搜题
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搜题
【简答题】
选择最佳答案。 1. — — Nice to meet you, too. [ ] A. Hello! B. Nice to meet you. C. Good morning! 2. — Let's go to school. — [ ] A. Really? B. Bye! C. OK! 3. — I have a crayon. — [ ] A. This is a pen. B. Me too. C. OK! 4. — What's your name? — [ ] A. My name's Mike. B. This is Mike. C. Nice to meet you, Mike. 5. — Where is your ruler? — [ ] A. This is my ruler. B. Here it is. C. I have a ruler. 6. — Hi! I'm Zhang Nan. — [ ] A. Let's go to school. B. Nice to meet you. C. Fine, thank you. 7. — Shake your body. — [ ] A. Thank you. B. OK! C. Clap your hands. 8. — Let's make a puppet. — [ ] A. Good idea. B. Goodbye. C. Let's go. 9. — Good afternoon. — [ ] A. Good morning. B. Good afternoon. C. Good evening. 10. — Happy Halloween! — [ ] A. Happy Teachers' Day! B. Thank you! Happy Halloween. C. That's OK.
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举一反三
【单选题】He looked around and wondered ______ he should do.
A.
that
B.
why;what
C.
how
D.
what
【单选题】He looked around and caught a man ____ his hand into the project of a passenger. [ ]
A.
put
B.
to be putting
C.
to put
D.
putting
【单选题】用BF 3 -H 2 O引发四氢呋喃开环聚合，要提高反应速率又不降低聚合度的最好方法是( )。
A.
提高反应温度
B.
增加引发剂用量
C.
提高搅拌速率
D.
加入少量环氧氯丙烷
【单选题】实验室里需用480ml 0.1mol·L -1 的硫酸铜溶液，现配制该浓度的溶液，以下操作正确
A.
称取7.68g硫酸铜，加入500mL水
B.
称取12.0g胆矾配成500mL溶液
C.
称取8.0g硫酸铜，加入500mL水
D.
称取12.5g胆矾配成500mL溶液
【单选题】He looked around and caught a man _____ his hand into the pocket of a passenger.
A.
put
B.
to be put
C.
to put
D.
putting
【单选题】实验室需用480mL0.1mol·L -1 的硫酸铜溶液，现选取500mL容量瓶进行配制，以下操作正确的是 [ ]
A.
称取7.68g硫酸铜，加入480mL的水
B.
称取12.0g胆矾，配成480mL溶液
C.
称取8.0g硫酸铜，加入500mL水
D.
称取12.5g 胆矾，配成500mL溶液
【单选题】He looked around and caught a man __________ his hand into the pocket of a passenger.
A.
put
B.
to be putting
C.
putting
D.
to put
【单选题】实验室里需用480mL0．1mol·L -1 的硫酸铜溶液，现配制该浓度的溶液，以下操作正确的是 [ ]
A.
称取7．68g硫酸铜，加入500mL水
B.
称取12．0g胆矾配成500mL溶液
C.
称取8．0g硫酸铜，加入500mL水
D.
称取12．5g胆矾配成500mL溶液
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