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【单选题】
大米和大豆混合食用,哪两种氨基酸发挥了互补作用A.
亮氨酸和赖氨酸
B.
赖氨酸和色氨酸
C.
赖氨酸和蛋氨酸
D.
赖氨酸和苯丙氨酸
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反馈参考答案：
举一反三
【单选题】“Was his father very strict with him when he was at school?” “Yes. He had never praised him
A.
_____ he became one of the top students in his grade.”
B.
after
C.
unless
D.
until
E.
when
【简答题】“Was his father very strict with him when he was at school?” “Yes. He had never praised him _______ he became one of the top students in his grade.” A．after B．unless C．until D．when
【简答题】《中国药典》一部收载范围包括哪些?
【单选题】由乙烯推测丙烯与溴水反应时,对反应产物的叙述正确的是
A.
CH2Br—CH2—CH2Br
B.
CH3—CHBr—CH3
C.
CH2Br—CH2Br—CH2
D.
CH3—CHBr—CH2Br
【单选题】- Was his father very strict with him when he was at school? - Yes. He has never praised him _______ he became one of the top students in his grade.
A.
after
B.
unless
C.
until
D.
when
【多选题】由乙烯推测丙烯与溴水反应时,对反应产物的叙述正确的是( )。
A.
CH2Br—CH2—CH2Br
B.
CH3—CHBr—CH3
C.
CH3—CH2—CHBr2
D.
CH3—CHBr—CH2Br
E.
CH2Br—CH2Br—CH2
【单选题】—Was his father very strict with him when he was at school？ —Yes, he had never praised him _______ he became one of the top students in his grade.
A.
after
B.
unless
C.
until
D.
when
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