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【单选题】

Speaker A: It's a beautiful day today! How about a little trip out into the countrySpeaker B: ______

A.
That sounds great. What should I do for the preparation
B.
I don't know. I really haven't thought about what we'd do.
C.
Well, would you like me to pack picnic or to buy something
D.
It's all right. Thank you.
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【单选题】王某,男,37岁。3天前晨起突然出现呕吐痰涎,脘闷不食,头眩心悸,舌苔白滑。应诊断为何种病证:

A.
外邪犯胃型呕吐
B.
饮食停滞型呕吐
C.
痰饮内停型呕吐
D.
肝气犯胃型呕吐
E.
胃阴不足型呕吐

【单选题】下面关于完全二叉树的叙述中,错误的是______。

A.
除了最后一层外,每层上的结点数均达到最大值
B.
可能缺少若干个左右叶子结点
C.
完全二叉树一般不是满二叉树
D.
具有结点的完全二叉树的深度为[log2n]+1