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【单选题】
减少钢筋混凝土受弯构件的裂缝宽度,有效而经济的措施是( )A.
增加钢筋面积
B.
增加截面尺寸
C.
提高混凝土强度等级
D.
采用细直径的钢筋或变形钢筋
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【简答题】根据句意和首字母提示完成单词。 1. My grandfather's d______ made me very sad. 2. My sister is very careful. She made few m______ in her homework. 3. He was b______ in a poor family. 4. His m______ encourage me all th...
【单选题】My sister is very hard-working. She is not only good at her subjects but also she often helps my parents . [ ]
A.
do the dish
B.
do chores
C.
do laundry
D.
do homework
【单选题】My sister is very interested in singing, and ______.
A.
so is my brother
B.
so am I, too
C.
he is so
【单选题】—My sister is very upset today. —It’s your fault .You the bad news to her yesterday.
A.
should tell
B.
should have told
C.
shouldn’t have told
D.
must tell
【单选题】My sister is very _________ and she never asks anyone for help.
A.
sad
B.
strict
C.
shy
D.
cruel
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