皮皮学，免费搜题
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【单选题】
关于简易呼吸器的使用,下列说法错误的是:A.
需将面罩扣紧鼻部,避免漏气
B.
若病人有自主呼吸,需在病人吸气时送气
C.
每一次送气需观察患者胸部有无起伏
D.
送气后需将面罩拿开使病人呼气
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【单选题】How many _____ of water can you see? [ ]
A.
glass
B.
a glass
C.
glasses
D.
some glass
【简答题】阅读理解。 If you know how to study a glass of wine, it can tell you about its history. Studying a wine involves using several senses, not just taste. First, pour the wine into a glass and look at it. Colo...
【简答题】选出不规范的课题研究题目() A落实数学核心素养“数学抽象”的实践案例研究 B浅析初中语文综合性学习中蕴含的中华优秀传统文化 C中学化学情境素材的选取与运用研究 D音乐课教学中合唱教学的设计与实践研究
【简答题】How can glass and plastics be reused?
【简答题】How can you make the egg sink to the middle of the glass? Pour ___________ without __________.
【单选题】As suggested by the text, how can glass be made less brittle?
A.
It can be heated and then cooled quickly.
B.
It can be cooled and then heated slowly
C.
It can be heated and then cooled slowly.
D.
It can be cooled and then heated quickly.
【多选题】当不计体力时，在极坐标中按应力求解平面问题，可归结为求解一个应力函数【图片】，它必须满足下列条件：（ ）。
A.
区域内的相容方程
B.
边界上的应力边界条件
C.
多连体的位移单值条件
D.
区域内的平衡微分方程
【单选题】How many _______ can you see on the desk? [ ]
A.
glass of milk
B.
glass of milks
C.
glasses of milk
D.
glasses of milks
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