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【单选题】
Though speech is the most obvious form of communication, it is not the only means ______ we communicate.A.
with which
B.
by which
C.
for which
D.
in which
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【简答题】You should provide the names of two people who can give letters of recommendation．
【多选题】对于失事后造成损失不大的水利水电工程，其( )主要永久性水工建筑物的级别，经过论证并报主管部门批准，可降低一级。
A.
1级
B.
2级
C.
3级
D.
4级
E.
5级
【单选题】Computer networks can provide those who use them with one of the following except ______.
A.
access to remote information
B.
person-to-person communication
C.
economic returns
D.
interactive entertainment
【多选题】失事后造成巨大损失，或者对水利水电工程造成十分严重影响的永久性水工建筑物，经过论证并报主管部门批准，其级别可提高一级。适用于( )永久性水工建筑物。
A.
2级
B.
3级
C.
4级
D.
5级
E.
6级
【单选题】Peter is ten years old. He is _______ to go to school.
A.
old enough
B.
enough old
C.
young enough
D.
enough young
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