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【单选题】
已知向量 ，如果 ，那么A.
且 与 同向
B.
且 与 反向
C.
且 与 同向
D.
且 与 反向
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举一反三
【简答题】A. It doesn't have any cooperation with other companies.B. It has limited kinds of software products.C. The after-sales team isn’t effective and qualified.D. It doesn’t adopt an appropriate marketing ...
【多选题】下列关于会计档案的销毁的说法正确的是（ ）。
A.
需要销毁的会计档案应当编制会计档案销毁清册
B.
单位负责人应在会计档案销毁清册上签署意见
C.
销毁时，应由单位档案机构和会计机构共同派员监销
D.
销毁后，监销人要在销毁清册上签名盖章
【单选题】Questions 12 to 15 are based on the conversation you have just heard.
A.
It doesn't have any cooperation with other companies.
B.
It has limited kinds of software products.
C.
The after-sales team isn't effective and qualified.
D.
It doesn't adopt an appropriate marketing strategy.
【简答题】There are many different approaches to developing and implementing change and each company tries to adopt the most appropriate model for their needs and requirements. The following diagram represents ...
【单选题】以下关于手足口病的表述不正确的是
A.
手足口病患者和隐性感染者均为传染源
B.
人群对本病普遍易感,感染后具持久免疫
C.
主要经消化道、呼吸道和密切接触途径传播
D.
儿童为好发人群
E.
一年的四季均可发平邮,不同地区流行季节不同
【单选题】Why Corbin is growing very quickly?
A.
Because of its perfect location between the ocean and the mountains, and its terrific climate.
B.
Because of its population.
C.
Because there are many people going there for business.
【单选题】The biggest problem you generally encounter while towing a single tow astern is ().
A.
The catenary dragging on the bottom
B.
Swamping of the tow
C.
The tow tending to dive
D.
Yaw
【简答题】设 x , y 均为 int 型变量,描述“x,y符号相异”的表达式是 。
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