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【多选题】
下列关于变量定义的描述中,正确的是________A.
定义变量时，至少应指出变量的名字和类型
B.
定义变量时没有给出初值，该变量可能是无意义值
C.
定义变量时，同一个类型多个变量间可用逗号分隔
D.
定义变量时，必须要给变量初始化
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举一反三
【多选题】Under what circumstances would people like to listen with more effort according to lesson eight?
A.
People would like to listen for sharing agreements.
B.
People would like to listen to attention grabbers.
C.
People would like to listen to fictional novels.
D.
People would like to listen for protecting rightness.
【单选题】Old people like to ______ the radio and my parents like to ______ TV. [ ]
A.
listen; see
B.
listen; watch
C.
watch; listen to
D.
listen to; watch
【多选题】关于砌体结构特点的说法，正确的有______。
A.
砌体材料抗压性能好
B.
结构保温性能好
C.
可用于跨度小于20m的中小型厂房的墙体、柱和基础。
D.
结构耐火性能差
E.
砌体的受力特点是抗压强度较高而抗拉强度很低
【多选题】Under what circumstances would people like to listen with more effort according to lesson eight?
A.
People would like to listen to polite requests.
B.
People would like to listen to attention grabbers.
C.
People would like to listen for sharing agreements.
D.
People would like to listen for protecting rightness.
【简答题】染色质和染色体是同一物质在细胞内的___________________ 的两种表现。
【单选题】One of the few things you ___ say about English people with certainty is that they talk a lot about the weather.
A.
need
B.
must
C.
should
D.
can
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