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搜题
【多选题】
下列哪些执行装置是执行旋转(或摆动)运动?
A.
液压马达
B.
叶片式摆动液压缸
C.
活塞式液压缸
D.
齿条式摆动液压缸
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参考解析:
知识点:
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皮皮学刷刷变学霸
举一反三
【单选题】下列哪一个不是三大供能营养素的供能系数?
A.
4 Kcal/g
B.
7 Kcal/g
C.
9 Kcal/g
【判断题】在拉曼光谱中,分子振动要产生位移也要服从一定的选择定则,也就是说只有伴随分子极化度发生变化的分子振动模式才能具有拉曼活性,产生拉曼散射。( )
A.
正确
B.
错误
【单选题】Do you know the girl over there?()
A.
How can I know?
B.
Yes, I remember it now.
C.
It's Sam, my teacher's daughter
D.
She is a good girl.
【单选题】下列不属于三大供能营养素的是:
A.
B.
脂肪
C.
酒精
D.
蛋白质
【单选题】Who ___ the girl over there?
A.
like
B.
be
C.
is
D.
are
【单选题】通常情况下,婴儿添加辅助食品的时间是()个月。
A.
2~4
B.
3~5
C.
4~6
D.
6~8
【单选题】What does Peter think about the girl over there?
A.
She will not enjoy dancing with him.
B.
She cannot find her way out to the dance floor.
C.
She will be only too glad to accept his invitation.
D.
She is not his type.
【简答题】□÷2=41…1,□里填______.
【简答题】三大供能营养素是指 、 、 。
【单选题】- is the girl over there? - is my friend.
A.
Who; She
B.
What; She
C.
Who; He
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