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【多选题】
从生理学角度,味感的四个基本味是( )
A.
酸味
B.
甜味
C.
苦味
D.
咸味
E.
辣味
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皮皮学刷刷变学霸
举一反三
【单选题】Do you know _____ this time yesterday? [     ]
A.
who are they waiting
B.
who they are waiting for
C.
who were they waiting
D.
who they were waiting for
【单选题】—Who are they? — ______ . [     ]
A.
It's Dave
B.
They are Jim and Tom
C.
They are Eli
D.
That's a book
【单选题】Who are they?______father and mother . [     ]
A.
He is Jim's
B.
They are Jim
C.
They are Jim's
【单选题】Who are they ?
A.
They are farmers .
B.
They are in front of the door .
C.
They are my grandfather and grandmother .
【多选题】RC振荡器工作原理与LC振荡器类似,只是用RC选频网络代替LC回路,适于较低的振荡频率,
A.
若放大器为同相放大器,则RC选频网络提供的反馈系数应为正实数
B.
若放大器为反相放大器,则RC选频网络提供的反馈系数应为负实数
C.
依然应该满足反馈型振荡器的起振、平衡和稳定条件
D.
在电容C可变范围一定时,文氏电桥振荡器的可调节频率范围小于LC振荡器
【单选题】________ paresseux qu'il ait été, il a réussi à l'examen final
A.
Quel
B.
Quelle
C.
Quelque
D.
Tellement
【简答题】交通需求量预测内容包括
【单选题】异位妊娠患者就诊的主要症状是
A.
停经
B.
晕厥
C.
腹痛
D.
阴道流血
E.
肛门坠胀感
【单选题】属于嘌呤类抗代谢的抗肿瘤药物是
A.
米托蒽醌
B.
紫杉醇
C.
巯嘌呤
D.
卡铂
E.
甲氨蝶呤
【单选题】Who are they?
A.
They are doctors.
B.
They are students.
C.
They are teachers.
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