皮皮学,免费搜题
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【单选题】
有些儿童受饮食、遗传和()等因素的影响,摄入大于消耗,使体内脂肪过度积聚,体重超过一定范围,医学上称之为单纯性肥胖。
A.
疾病
B.
父母影响
C.
活动
D.
教育
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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
【单选题】设 为非零常数,则 满足 时,级数 ( )
A.
收敛
B.
发散
C.
无法判别敛散性
D.
以上都不对
【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
【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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