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【判断题】
要使for(表达式1;表达式2;表达式3){循环体}不形成死循环,表达式2一定不能省略。A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】I have brought some sandwiches _______we might get hungry.
A.
for
B.
in case
C.
so that
D.
since
【简答题】放线菌素D既可以抑制原核细胞的基因转录，又可以抑制真核细胞的基因转录。
【单选题】We don't have ________bread. Would you like ________ sandwiches, please?
A.
any; any
B.
some; some
C.
some; any
D.
any; some
【简答题】The old woman lives in a ____ (mountain) area.
【简答题】真核细胞hnRNA转录后的加工包括______、______、______和______，才成为成熟的mRNA。
【简答题】Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need. A. honoured B. set C. hi...
【单选题】The old woman lives _____ a small town. It is ____ two hills( 小山 ).
A.
in, between
B.
at, among
C.
in, among
D.
at, between
【单选题】The old woman lives _____ a house _____ a garden.
A.
in; and
B.
on; with
C.
in; with
D.
with; in
【单选题】给下面加点字注音有误的一项是?
A.
肃穆(mù） 舷（xián）梯 寒暄（xuān）
B.
马厩（jiù） 湔（jiān)雪 天理昭（zhāo）彰 厥（j ù ）功甚伟
【单选题】The old woman lives___,but she never feels___.
A.
lonely;alone
B.
alone;lonely
C.
lonely; lonely
D.
alone;alone
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