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【判断题】
测定沥青路面渗水系数时，必须用密封材料对环状密封区域进行密封处理，注意不要使密封材料进入内圈。A.
正确
B.
错误
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举一反三
【单选题】The school bus got out of ______ on the way to school this morning, so all the students were late.
A.
order
B.
function
C.
power
D.
work
【单选题】From the passage we know that ______.
A.
the school was situated in Washington's Black ghetto
B.
Joyce was a young successful music teacher
C.
the Music Festival in Vienna is to be held on April every year
D.
most of Joyce's pupils decided to raise money for the trip
【单选题】We ______ to go into the school unless we are in school uniforms. [ ]
A.
allow
B.
are allowed
C.
are not allowed
D.
allowed
【单选题】We ________ to go into the school unless we are in school uniforms. [ ]
A.
allow
B.
are allowed
C.
are not allowed
【单选题】We were to the school bus to get to the museum, but it was broken, so we had to take the subway.
A.
take
B.
have taken
C.
to be taking
D.
to have been taking
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