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【简答题】
“汗流浃背”的典故出自西汉，他 “汗流浃背”的原因是什么?
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
【简答题】云南省简称云或（），省会昆明。
【简答题】1988 年以前,我国的保险业由 独家经营。
【单选题】Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You shoul...
A.
Every child in hospital receives some teaching.
B.
Not enough is known about hospital teaching.
C.
Hospital teaching is of poor quality.
D.
The special children's hospitals are worst off.
【简答题】【实验探究题】 某化学兴趣小组将光亮铜片放在酒精灯火焰上灼烧，发现表面变黑，他们对黑色物质来源产生了兴趣，铜片表面黑色物质是什么呢？ 【猜想与假设】甲认为：铜片表面的黑色固体是烟灰． 乙认为：铜片表面的黑色固体可能是空气中的氧气与铜反应生成的新物质． 丙认为：铜片表面的黑色固体既有烟灰又有氧气与铜反应生成的新物质． 【查阅资料】 （1）酒精不充分燃烧产生炭黑（即黑烟）； （2）氧气的化学性质比较活...
【单选题】Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You shoul...
A.
Every child in hospital receives some teaching.
B.
Not enough is known about hospital teaching.
C.
Hospital teaching is of poor quality.
D.
The special children's hospitals are worst off.
【多选题】计算机运行速度明显变慢,经常会“假死”,重装操作系统后问题仍然存在,可能原因是
A.
机箱内灰尘较多，CPU温度过高
B.
CPU供电电路有问题，导致CPU运行不稳定
C.
键盘坏了
D.
系统电源老化，致使CPU供电不足
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