皮皮学，免费搜题
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【多选题】
概率抽样法包括:A.
简单随机抽样
B.
分层抽样
C.
整群抽样
D.
等距抽样
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】对高楼住宅综合征表现描述正确的有
A.
表现为体质虚弱、四肢无力、面色苍白、不适应气候变化、不爱活动
B.
表现为性格孤僻、急躁、难以与人相处
C.
是导致老年肥胖症、骨质疏松症的常见原因
D.
以上描述均正确
【单选题】听力原文： As expected, the U.S. Federal Reserve has cut interest rates for the fifth time this year to try to avoid a recession in the world's largest economy. The Fed cut rates by a half percent, to four...
A.
five
B.
four
C.
seven
D.
six
【单选题】Mike`s parents expected him to go on studying after hegraduated from college, but he won`t listen to them because he ______ to workin a bid computer company in Shanghai.
A.
decided
B.
wasdeciding
C.
hasdecided
D.
will decide
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