皮皮学,免费搜题
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搜题
【单选题】
凭样交易,合同没有其他规定,卖方所交货物的品质( )
A.
可有合理误差
B.
可与样品大致相符
C.
必须与样品完全一致
D.
无特殊规定
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举一反三
【单选题】色光的三原色是(  )
A.
红、绿、蓝三种
B.
红、黄、蓝三种
C.
红、绿、黄三种
D.
绿、黄、蓝三种
【判断题】心肌病可分为扩张型、缩小 型、限制型和未定型 4种类型。
A.
正确
B.
错误
【单选题】下列与光现象有关的说法中错误的是( ) A .手影是根据光的直线传播形成的 B .老花镜的镜片是用凸透镜制成的 C .照相机利用了凸透镜能成倒立缩小的虚像的原理 D .色光的三原色是红、绿、蓝
A.
B.
C.
D.
D
【单选题】血液循环中实现物质交换的是:
A.
微动脉
B.
真毛细血管网
C.
动静脉吻合支
D.
微静脉
E.
毛细血管前括约肌
【单选题】Paul was feeling a bit ____ then, for he had no friends.
A.
active
B.
lone
C.
lonely
D.
selfish
【简答题】如图(a)所示电路,已知U s =2V,R 1 =R 2 =2Ω,非线性电阻的伏安特性为i=f(u)=2u 2 (u>0)。
【单选题】色光的三原色是 [     ]
A.
红、黄、蓝
B.
红、绿、蓝
C.
红、黄、绿
D.
黄、绿、蓝
【单选题】He was by nature a sociable, chatty man and he had reckoned that his action would () produce conversation
A.
infallibly
B.
bounced
C.
concentrate
D.
acclamation
【单选题】Passage two ( 1 ) PAUL was dissatisfied with himself and with everything. The deepest of his love belonged to his mother. When he felt he had hurt her, or wounded his love for her, he could not bear i...
A.
. indifferent
B.
. desperate
C.
pessimistic
D.
ambiguous
【简答题】Paul was feeling a bit ____ then, for he had no friends.A. active B. lone C. lonely D. selfish
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