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【多选题】
侧链带羟基的氨基酸包括:(多选)A.
Ser
B.
Thr
C.
Phe
D.
Tyr
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【单选题】— Did they carry out the experiment in the school lab? — No, it was in the scientific center _______ their teacher worked. [ ]
A.
that
B.
where
C.
why
D.
when
【简答题】在普通话单元音韵母中,a、o、e的专业名称依次为 、 、 。
【单选题】It was in the school ____ he had studied ____ he began the important experiment.
A.
that; where
B.
in which; which
C.
where; that
D.
where; in which
【单选题】—Where did you meet the visitor? —It was in the school _____I worked five years ago.
A.
where
B.
that
C.
which
D.
what
【单选题】It was in the school ___ he studied ten years ago ____ he gave a wonderful speech.
A.
that; that
B.
where; where
C.
that ; where
D.
where ; that
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