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【单选题】
豌豆杂交中,如果子代中50%是高茎,50%是矮茎,则其亲代可能是:
A.
DD和Dd
B.
Dd和dd
C.
Dd 和Dd
D.
DD 和dd
E.
DD 和DD
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【单选题】学习的最佳期限是指
A.
心理机能已经发展成熟的时候
B.
学习条件都已具备的时候
C.
心理机能开始形成之前
D.
心理机能正在开始又尚未形成之时
【单选题】Participating in such activities would affect him in ______.
A.
more than one ways
B.
more ways than one
C.
one more than ways
D.
than more than ways
【单选题】Everyone knows how the story of Cinderella ends, but did you ever really think about how she spent her days before she met the prince? Her daily routine was not fascinating. She did everything from sw...
A.
all obligation
B.
a compulsion
C.
an assignment
D.
a burden
【简答题】His boss regards him as no more than a (type) ______ and he is not given career opportunities.
【单选题】《山海经》中载录的植物药物共有多少种?()
A.
76
B.
65
C.
54
D.
35
【单选题】How did it ________ that everyone knows my decision? I had been keeping the information to myself.
A.
come across
B.
come on
C.
come about
D.
come out
【单选题】I think nobody makes  _______ contributions to the company than him.
A.
greater
B.
more great
C.
more greater
D.
much great
【简答题】下列图示中,表示北半球秋分到春分这段时间内,太阳直射点移动状况的是 (图中“     ”表示太阳直射点的移动方向)
【简答题】Teach him it is far more honorable to fail than to cheat.
【简答题】Blanks 1 through 4 are based on the following conversation. Complete the form. Write NO MORE THAN THREE WORDS for each answer. What are they taking about? 1 in different countries. For example, China ...
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