皮皮学，免费搜题
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【单选题】
肥胖病属于人体何种系统的疾病？（）
A.
神经系统
B.
代谢系统
C.
运动器官系统
D.
内脏器官系统
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】— Hurry up! It's time to leave. — OK, ______. [     ]
A.
I come
B.
I've come
C.
I'll come
D.
I'm coming
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【单选题】世界上第一个在公司内部成立公共关系部门的是
A.
爱迪生
B.
乔治.威斯汀豪斯
C.
阿伦.森特
D.
斯科特.卡特里普
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【简答题】已知cos（π+α）=- 1 2 ，且α是第四象限角，则sin（2π-α） ______
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【单选题】—May I come in? I'm sorry I'm late. —Come in, please. But could you tell me ? [      ]
A.
how do you come to school
B.
what were you doing then
C.
who you talked with
D.
why you are late
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【单选题】I’m afraid I’ll have to leave now ----- something has ______.
A.
come out.
B.
come up.
C.
come in.
D.
come down.
查看完整题目与答案
【单选题】下列不能提高对流传热膜系数的是
A.
利用多管程结构
B.
增大管径
C.
在壳程内装折流挡板
D.
冷凝时在管壁上开一些纵槽
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【简答题】已知α是第四象限角，且 cosα= 3 5 ． （1）求tanα的值； （2）求 sin( 3 2 π-α)+2cos(α+ π 2 ) sin(α-π)-3cos(2π-α) 的值．
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【单选题】I expect them _______ and I wish all the rooms _____________.
A.
to come; to clean
B.
come; to clean
C.
to come; to be cleaned
D.
come; to be cleaned
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【简答题】已知tan（π-α）= 3 4 且α是第四象限角，则sinα=______．
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【简答题】I would have come earlier, but I ___________ (not know) that you were waiting for me.
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【单选题】— Hurry up! It's time to leave. — OK, ______. [     ]
A.
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B.
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C.
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D.
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【单选题】世界上第一个在公司内部成立公共关系部门的是
A.
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【简答题】已知cos（π+α）=- 1 2 ，且α是第四象限角，则sin（2π-α） ______
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【单选题】—May I come in? I'm sorry I'm late. —Come in, please. But could you tell me ? [      ]
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B.
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C.
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D.
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【单选题】I’m afraid I’ll have to leave now ----- something has ______.
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B.
come up.
C.
come in.
D.
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【单选题】下列不能提高对流传热膜系数的是
A.
利用多管程结构
B.
增大管径
C.
在壳程内装折流挡板
D.
冷凝时在管壁上开一些纵槽
查看完整题目与答案
【简答题】已知α是第四象限角，且 cosα= 3 5 ． （1）求tanα的值； （2）求 sin( 3 2 π-α)+2cos(α+ π 2 ) sin(α-π)-3cos(2π-α) 的值．
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【单选题】I expect them _______ and I wish all the rooms _____________.
A.
to come; to clean
B.
come; to clean
C.
to come; to be cleaned
D.
come; to be cleaned
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【简答题】已知tan（π-α）= 3 4 且α是第四象限角，则sinα=______．
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【简答题】I would have come earlier, but I ___________ (not know) that you were waiting for me.
查看完整题目与答案