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【简答题】
已知反应 CaO(s)+H 2 O(l) → Ca(OH) 2 (s) 在室温下可自发进行 , 但在高温 下不能自发进行 , 据此可知该反应的 。 ( A ) △ r H m θ < 0 , △ r S m θ > 0 ( B ) △ r H m θ > 0 , △ r S m θ < 0 (C) △ r H m θ < 0 , △ r S m θ < 0 ( D ) △ r H m θ > 0 , △ r S m θ > 0
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举一反三
【单选题】男，59岁，冠心病20年。某日突然神志丧失，呼吸不规则，即刻进行心肺复苏，心脏按压时下压胸骨的深度是( )。
A.
1～3cm
B.
4～5cm
C.
5～6cm
D.
6～7cm
E.
7～8cm
【单选题】Passage 2
A.
He visits the girl and her family.
B.
He goes back home.
C.
He visits his friends.
D.
He calls the girl.
【多选题】在 HTML 中，以下关于 元素的属性说法正确的是 ( )( 选择二项 )
A.
type执行表单元素的类型，默认为text
B.
size执行表单元素的初始宽度，大小必须以字符为单位
C.
checked指定单选按钮或浮选框是否被选中
D.
maxlength指定可在text或password元素中输入的最大字符数，默认为100
【单选题】Passage 2
A.
They were often too generous.
B.
They often spoiled him too much.
C.
They made him go off to university.
D.
They made him follow their rules.
【单选题】Passage 2
A.
Visit their neighbors.
B.
Eat out with their families.
C.
Stay at home with their families.
D.
Go out with co-workers.
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