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【单选题】
21-三体综合征染色体畸变绝大部分为A.
D/G易位型21-三体
B.
嵌合型21-三体
C.
G／G易位型21-三体
D.
标准型21-三体
E.
21/22易位型21-三体
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【简答题】4 Complete the words in the text. My
brother has just bought a very ► substantial six-bedroom house. It’s a
1930s semi-(1) d____ house, and (2) c____
it is in terrible condition, but it will be ve...
【单选题】The little man was _______ one meter fifty high, who is often laughed at.
A.
almost more than
B.
hardly more than
C.
nearly more than
D.
as much as
【单选题】She is often laughed at ________ her classmates because of her laziness.
A.
with
B.
by
C.
to
D.
from
【单选题】My brother is very funny, and he often makes us .
A.
laugh
B.
to laugh
C.
laughing
D.
laughed
【单选题】He was often laughed at for dreaming of making a _________.
A.
wealth
B.
fortune
C.
money
D.
point
【单选题】Parents are often laughed at by their children when ______.
A.
they use slang s which are out-of-date
B.
they would like to be at the top of the fashion
C.
they try to follow their children's steps
D.
they want to follow the fashion even if they can not
【单选题】Tom often makes his friends ________. [ ]
A.
laugh
B.
laughed
C.
laughing
D.
to laugh
【单选题】He often thinks out some _____ ideas so he is often laughed at by others. [ ]
A.
important
B.
necessary
C.
strange
D.
ridiculous
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