皮皮学，免费搜题
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搜题
【单选题】
后施工时，孔道灌浆的目的是（ ）。A.
防止预应力筋锈蚀
B.
增加预应力筋与混凝土间的粘结力
C.
增加构件强度
D.
减少预应力筋与混凝土间的粘结力
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举一反三
【单选题】I like playing _____ piano, but I don't like playing _____ basketball. [ ]
A.
/;/
B.
/;the
C.
the; the
D.
the;/
【简答题】In some parts of London, missing a bus means ________for another hour. [A] to wait [B] wait [C]waiting [D] waited
【单选题】It can be inferred from the passage that in some countries ______ .
A.
it is common to wait for an hour for an appointment
B.
explanations for being late are cut short
C.
apologies are never made for being late
D.
people are irresponsible
【简答题】其所含蛋白具有抗早孕作用的药物是
【简答题】In some parts of this city, missing a bus means (wait) ______ for another hour.
【单选题】串行异步通信的实现必须做到（）
A.
通信双方有同步时钟传送，以实现同步
B.
一块数据传送结束时，用循环冗余校验码进行校验
C.
以字符为传送信息的单位，按约定配上起始位、停止位和校验位
D.
块与块之间用同步字符01111110隔开
【单选题】Be quiet, kids. You’ll have to wait ______ your names are called.
A.
while
B.
until
C.
and
D.
unless
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