皮皮学，免费搜题
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【单选题】
城市集中供热系统由热源、( )和热用户三大部分组成。A.
热力网
B.
热电厂
C.
锅炉
D.
变热站
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Exams, grades and marks should be abolished because children's progress should be estimated only by ______.
A.
educated persons
B.
the children themselves
C.
teachers
D.
parents
【单选题】Exams, grades, and marks should be abolished because children's progress should only be assessed by ______.
A.
educated persons
B.
the children themselves
C.
teachers
D.
parents
【单选题】It' s strange that you ______ like that at the meeting.
A.
should speak
B.
spoke
C.
should have spoken
D.
speak
【单选题】According to the author, what should today's parents do?
A.
They should do the same thing as yesterday's parents did.
B.
They should educate their children according to traditional values.
C.
They should cooperate with their children's teacher.
D.
They should seek the balance between limitation on their children's behavior. and the freedom they wanted.
【单选题】AU those youngesters willbecome_________in ten years．
A.
growns-ups
B.
growns-up
C.
grown-up
D.
grown．ups
【单选题】Youngesters should settle their rivalries through competitive dance instead of fighting.
A.
F
B.
O
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