问题
单项选择题
可用浸液中折射率最高的为()。
A.二碘甲烷
B.一溴代萘
C.三溴甲烷
答案
参考答案:A
可用浸液中折射率最高的为()。
A.二碘甲烷
B.一溴代萘
C.三溴甲烷
参考答案:A
选词完成句子。 | |
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1. John likes fruit, so he likes ______ and ______ . 2. —What vegetables do you like? —I like ______ and ______ . 3. I usually drink ______ for breakfast, because it's a healthy drink. 4. —Do you like western (西方的) food? —Yes, I like ______ . 5. ______ is an unhealthy drink. |