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【多选题】
房屋有下列情况之一时( )宜设置防震缝,缝两侧均应设置 墙 体,缝宽应根据烈度和房屋高度确定,可采用 70mm~100mm:
A.
房屋立面高差在 6m 以上;
B.
房屋立面高差在 4.5m 以上;
C.
房屋有错层,且楼板高差大于层高的 1/4
D.
楼层高小于墙长的 1/4;
E.
各部分结构刚度、质量截然不同;
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举一反三
【单选题】设 为非零常数,则数项级数
A.
收敛
B.
发散
C.
敛散性与 有关
D.
无法确定
【判断题】电位滴定法不受溶液颜色的限制,但仍需使用合适的指示剂来确定滴定终点。
A.
正确
B.
错误
【单选题】设 为非零常数,则级数 ( ).
A.
收敛
B.
发散
C.
条件收敛
D.
未必收敛
【单选题】I hear one of my classmates America since 1980. [     ]
A.
are from
B.
have gone to
C.
has lived in
【单选题】Football is one of my ________ sports. No one can stop me from playing football.
A.
favourite
B.
most favourite
C.
confident
D.
confidentest
【判断题】One day I met one of my former students by chance. She was fresh from an excursion to Europe.
A.
正确
B.
错误
【单选题】根据简单管路的定义
A.
管直径沿程可以改变
B.
可以忽略速度水头
C.
管线内可以有阀门和弯头
D.
管线直径可以有扩大或缩小
【简答题】One of my fondest Christmas memories was also one of our family’s bleakest(最令人沮丧的).We were just little kids, and on Christmas Day mom us all around her to tell us, , that there would be no presents be...
【单选题】One of my friends ______ from England. [     ]
A.
come
B.
are
C.
is
D.
be
【简答题】One of my fondest Christmas memories was also one of our family’s bleakest(最令人沮丧的).We were just little kids , and on Christmas Day mom 36 us all around her to tell us , 37 ,that there would be no pres...
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