皮皮学，免费搜题
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【判断题】
设【图片】是直线【图片】上的一点，【图片】点是该直线外的一点，直线【图片】的方向向量为【图片】，则点【图片】到直线【图片】的距离为【图片】．A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】是萨满舞中“跳神”驱魔的法器之一，象征人与神沟通的对话道具。
【单选题】Though mathematis __________ hard, we all work hard at it.
A.
are
B.
were
C.
was
D.
is
【单选题】下列动画不能实现过渡的是()
A.
Empty->L_Anim_Close
B.
Empty->L_Anim_Open
C.
L_Anim_Close->L_Anim_Open
D.
L_Anim_Open->L_Anim_Close
【单选题】I really have to go now. I have ______ the doctor.
A.
appointments to
B.
an appointment to
C.
appointment with
D.
an appointment with
【单选题】Samuel: Hey, _____. Diana: I wish I could. But I really have to stay in and finish my paper tonight.Samuel: Oh, maybe some other time, then.
A.
can I come to visit you tonight?
B.
shall we have a barbecue some day this week?
C.
would you like to go to cinema with me tonight?
D.
John will leave Chicago tonight. Shall we go to see him off?.
【简答题】是指能够激起有机体的定向行为，并能满足某种需要的外部条件或刺激物。
【单选题】Why? I have nothing to confess. I really have no idea ____________you want me to say.
A.
that what it is
B.
what is it that
C.
what it is that
D.
that it is what
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