皮皮学，免费搜题
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搜题
【多选题】
体中的作用包括:A.
平衡体温
B.
搬运营养物质
C.
提供组织间的润滑作用
D.
提供能量来源
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】Experts think that _____ recently discovered painting may be _____ Picasso. [ ]
A.
the; 不填
B.
a; the
C.
a; 不填
D.
the; a
【判断题】It is improper to ask a caller to identify himself before answering his questions.
A.
正确
B.
错误
【单选题】It is improper to _____ between pupils according to their family background.
A.
different
B.
differentiate
【判断题】It is improper to ask the interviewer what the time frame is for deciding who will progress to the next stage.
A.
正确
B.
错误
【单选题】对于采用万用表区分红外晶体管描述不正确的是：
A.
无红外光照情况下，红外三极管正反向电阻为∞
B.
无红外光照情况下，红外二极管正向小电阻，反向电阻∞
C.
有红外光照情况下，红外三极管正反向都为小电阻
D.
有红外光照情况下，红外发射二极管正向小电阻，反向∞
【单选题】Public health experts say that (the) money one spends (avoiding) illness is (less) than the cost (to be) sick.
A.
the
B.
avoiding
C.
less
D.
to be
【简答题】It is improper to ___ (different) between pupils according to their family background.
【简答题】方桩同一纵向受力钢筋不宜设置()个以上的接头。
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