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【多选题】
下列对于冬期施工混凝土的搅拌、运输和浇筑的叙述正确的是( )。A.
混凝土可以露天搅拌，但用小容量的搅拌机，随拌随用。搅拌前，冲洗搅拌机
B.
采用加热养护时，混凝土养护前的温度小于0℃
C.
冬期不得在强冻胀性地基土上浇筑混凝土
D.
混凝土拌和物的出机温度不宜低于10℃
E.
在弱冻胀性地基上浇筑时，地基可不进行保温
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【单选题】听力原文： London in the 17th century was very attractive, like many European cities of the time. There was a beautiful cathedral, St. Paul's, and a magnificent Town Hall, the Guildhall. Also, there were m...
A.
Near Town Hall.
B.
In a narrow, dirty street.
C.
Behind many attractive churches.
D.
On the south side of the River Thames.
【判断题】Historically, education in the UK was voluntary and many of the schools that existed were set up by churches.
A.
正确
B.
错误
【单选题】There were not many ______ or ______.
A.
towns; churches
B.
town; church
C.
towns; church
D.
town; churches
【单选题】In our class, when the bell rang and the teacher closed his book, it was a ________ for everyone to stand up. [ ]
A.
signal
B.
chance
C.
mark
D.
measure
【简答题】In our class, when the bell rang and the teacher closed his book, it was a ______ for everyone to stand up. A．signal B．chance C．mark D．measure
【单选题】. Many churches were involved in missionary activities. They want to______all people to their religion.
A.
change
B.
convert
C.
turn
D.
transform
【单选题】All the following are closed class words EXCEPT______.
A.
conjunctions
B.
prepositions
C.
adjectives
D.
pronouns
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