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【单选题】
产品经过试销,消费者对新产品已经有所了解,产品的销路打开,销量开始迅速增长,产品基本定型,可以大批量生产,属于产品生命周期中的( )
A.
导入期
B.
成熟期
C.
成长期
D.
衰退期
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参考答案:
举一反三
【单选题】关于乙型脑炎病毒,错误的一项是
A.
传播媒介是蚊子
B.
猪是扩大的传染源
C.
猪-蚊-猪是主要病毒循环环节
D.
隐性感染多
E.
为DNA病毒
【单选题】I (don't think) I can (understand) this book because the subject (it) deals with is not familiar (with) me.
A.
don't think
B.
understand
C.
it
D.
with
【单选题】— I really don't understand why he treats his parents in that way. — ______. [     ]
A.
It's a small world
B.
It takes all sorts
C.
It doesn't matter
D.
It doesn't make sense
【单选题】下列关于乙型脑炎病毒的结构特征,哪项是错误的?
A.
包膜病毒;
B.
球形颗粒;
C.
包膜蛋白只有一个血清型;
D.
基因组为( - ) ssRNA
【判断题】全球化的过程实质是利益共享的过程。
A.
正确
B.
错误
【判断题】气味识别培训中,尽可能用纯的产品。
A.
正确
B.
错误
【单选题】— Are you clear, Tom? — No, sorry, I don't ______ understand. Can you please explain the sentence again?
A.
quite
B.
rather
C.
pretty
D.
fairly
【单选题】If you don't know the answer to something,  you say: '_______' [     ]
A.
Sorry, I don't understand.
B.
I'm sorry. I don't know.
C.
Can you speak English?
D.
Excuse me. How do you say that in English?
【单选题】关于乙型脑炎病毒,错误的一项是
A.
传播媒介是蚊子
B.
猪是扩大的传染源
C.
猪-蚊-猪是主要病毒循环环节
D.
隐性感染多
E.
为DNA病毒
【单选题】I don’t think I can understand this book, the subject it deals with is not familiar with me.
A.
B.
D.
D
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