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【单选题】
植物细胞胞间层的主要成分是A.
纤维素
B.
果胶多糖
C.
半纤维素
D.
木质素
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【简答题】青少年在社会认知与行为方面最显著的特点就是 、 、 。
【单选题】.—Have you moved into the new house? —No,the building is_________ construction.
A.
at
B.
under
C.
for
D.
in
【简答题】-Have you moved into the new house? -Not，yet．The rooms now．
【单选题】—Have you moved into the new house? —Not yet. The rooms______ .
A.
are being painting
B.
are painting
C.
arepainted
D.
are being painted
【简答题】青少年在社会认知与行为方面最显著的特点就是求新、求异和（）。
【单选题】---Have you heard that Tom, as well as his parents, ________ moved to Beijing ? ---Really ? No _________ I haven’t seen him for a long time.
A.
have; doubt
B.
have; reason
C.
has; choice
D.
has; wonder
【单选题】---Have you moved to _______ new flat? ---Not yet, the building is under _______ construction.
A.
a; the
B.
the; /
C.
/ ; /
D.
/; the
【单选题】—Have you moved into your new house? —No, the rooms _____. [ ]
A.
have been painted
B.
are painted
C.
are painting
D.
are being painted
【单选题】Have you moved into the new house? —Not yet ． Therooms ．
A.
． arebeing painted
B.
． arepainting
C.
． are painted
D.
． arebeing painting
【单选题】— Have you moved into the new house? — Not yet, the rooms _________. [ ]
A.
are being painted
B.
are painting
C.
are painted
D.
have been painted
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