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【多选题】
在C51中，语句“for（i=0;i<10;i++）”执行的循环次数为 ，语句“while(1)”执行的循环次数为 。A.
10
B.
无限次
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反馈参考答案：
举一反三
【单选题】Topic 45 Session 1 (Vocabulary 4-3) Read the sentences and choose the correct words or phrases. An _________ job is to examine existing systems and identify opportunities for improvement.
A.
analyst’s
B.
architect’s
【单选题】Topic 45 Session 1 (Vocabulary 4-6) Read the sentences and choose the correct words or phrases. The membership / software life cycle explains why there are so many jobs in software development.
A.
membership
B.
software life cycle
【单选题】Topic 45 Session 1 (Vocabulary 4-5) Read the sentences and choose the correct words or phrases. ________ are most commonly found in classrooms.
A.
Educators
B.
Freelancers
【单选题】Topic 45 Session 1 (Vocabulary 4-2) Read the sentences and choose the correct words or phrases. The _________ is a group that supports technological innovation.
A.
IEEE
B.
professional development
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