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【单选题】
He is always clever. I wonder how it_____that he should have failed the simple test this time.
A.
came about
B.
came over
C.
came up
D.
came out
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参考答案:
举一反三
【简答题】Whenever I am in (difficult) ______, he comes to help me.
【单选题】He offered______ me. I was very happy. [     ]
A.
help
B.
helping
C.
to help
D.
with helping
【单选题】-- Are you sure that he will come here in time? --- You may ______ he will come to help us though he is very busy.
A.
rely upon that
B.
rely upon it that
C.
rely upon what
D.
rely upon it what
【单选题】已知棱长为a,各面均为等边三角形的四面体S-ABC,则它的表面积等于(  )
A.
3 2 a 2
B.
2 3 a 2
C.
3 3 a 2
D.
3 a 2
【单选题】He didn't give up _____ me. [     ]
A.
to try to help
B.
to try help
C.
trying help
D.
trying to help
【简答题】已知各面均为等边三角形的四面体的棱长为2,则它的表面积是 .(精确到0.1)
【简答题】He says,“You are very nice to help me.” He says,“______ nice ______ you to help me.”
【简答题】‘Hemay help me.’ she said herself.A. in B. for C. by D. to
【简答题】He made a promise __________he would help me. A.what B.when C.that D.which
【单选题】弓|起植物自然衰老的主要因素为
A.
干旱
B.
高温
C.
缺氮
D.
短日照
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