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【多选题】
系统育种的品系程序包括( )等环节。A.
选择优良变异单株
B.
株行试验
C.
品系鉴定试验、品系比较试验
D.
区域试验、生产试验
E.
品种审定
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举一反三
【单选题】The reason for his absence from school was ____ he fell ill.
A.
because
B.
why
C.
what
D.
that
【单选题】What did the doctor think was the reason for his trouble?
A.
He has been sitting too much.
B.
He has been working too hard in his office.
C.
He has been watching too much of TV.
D.
He has been eating too much.
【单选题】The reason for his success is ______ he worked very hard.
A.
why
B.
that
C.
whether
D.
how
【单选题】Being late was the reason for his layoff.
A.
denied in
B.
admitted to
C.
erected in
D.
assigned as
【简答题】马克思主义哲学的理论渊源是德国古典哲学,能否把马克思主义哲学看成是费尔巴哈 和黑格尔哲学体系的相加?
【单选题】Which of the following was not the reason for his running away from home?
A.
The money his father gave him was meager.
B.
He did not reach a consesus with his parents on whether to go to college or not
C.
He thought the work on the farm was meaningless and boring.
D.
He was very angry because his father gave him a good beating.
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