问题
单项选择题
高分子溶液制备时，高分子化合物首先要经过
A．浓缩过程
B．溶胀过程
C．稀释过程
D．扩散过程
E．溶出过程
答案
参考答案：B
解析：高分子溶液形成的过程和特点。
搜题请搜索小程序“爱下问搜题”
高分子溶液制备时，高分子化合物首先要经过
A．浓缩过程
B．溶胀过程
C．稀释过程
D．扩散过程
E．溶出过程
参考答案：B
解析：高分子溶液形成的过程和特点。
阅读理解。 | |||||||||||||||||||||||||
| SUNNY SCHOOL We are a bilingual (双语) school for children of 6-15. We want a cook, a library assistant, a sports coach and a language teacher.
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| 1．Who CAN'T go to Sunny School? | |||||||||||||||||||||||||
[ ] | |||||||||||||||||||||||||
| A. An eighteen-year-old kid. B. An eleven-year-old boy. C. A fifteen-year-old girl. D. A fourteen-year-old child. | |||||||||||||||||||||||||
| 2．Who is NOT wanted by Sunny School? | |||||||||||||||||||||||||
[ ] | |||||||||||||||||||||||||
| A. A sports coach. B. An English teacher. C. A library assistant. D. A math teacher. | |||||||||||||||||||||||||
| 3．We know ______ may not speak English in Sunny School. | |||||||||||||||||||||||||
[ ] | |||||||||||||||||||||||||
| A. the sports coach B. the cook C. the library assistant D. the language teacher | |||||||||||||||||||||||||
| 4．The coach must major in ______. | |||||||||||||||||||||||||
[ ] | |||||||||||||||||||||||||
| A. Chinese B. English C. food D. P.E. | |||||||||||||||||||||||||
| 5．The Sunny School wants a teacher ______. | |||||||||||||||||||||||||
[ ] | |||||||||||||||||||||||||
| A. aged between 25 and 40 B. who can cook Western food C. who is careful and strong D. who can speak English and Chinese |