1编号：2717题型：单选题测试正确率：60.61%
已知x为正实数，则y=+的最小值为（ ）
2编号：2718题型：单选题测试正确率：72.73%
设n为正整数，S=+…+，那么S与1的大小关系是（ ）
3编号：2716题型：单选题测试正确率：42.42%
已知0＜a＜1,0＜b＜1，则+++的最小值为（ ）．
4编号：2713题型：单选题测试正确率：0%
You are ill. You had better _______ the doctor right now.
5编号：2712题型：单选题测试正确率：0%
—How was your weekend, Jeff？ —I had great ＿＿＿ watching a football game.
6编号：2710题型：单选题测试正确率：0%
--- Do you take exercise every day? ----Yes. I always______ thirty minutes after supper.
7编号：2709题型：单选题测试正确率：0%
Mrs. Green is ________ her purse, but she can’t __________ it.
8编号：2708题型：单选题测试正确率：0%
We know that how life began is still a ____.
9编号：2707题型：单选题测试正确率：0%
I can’t go with you now. I have an important ____ to do.
10编号：2701题型：单选题测试正确率：0%
They all shouted in one ____, “Long live the People’s Republic of China!”
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