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【单选题】
以下不属于电子商务侵权的特点是()。
A.
电子商务侵权主体多样化、智能化和低龄化
B.
共同侵权行为的发生频率较高
C.
侵权的主体多层次
D.
电子商务侵权行为的隐蔽性和技术性较强
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【单选题】听力原文:W: Won't you take the car? It's quite cheap. M I'm having second thoughts about buying the car. Q: What does the man mean? (15)
A.
He's not so sure to buy the car.
B.
He's ready to buy that car.
C.
He's certain to buy the car.
D.
He's afraid to buy that car.
【简答题】在客流量较大的区域,部分面食店为了减少顾客的就餐等待时间,会把面食的温度控制得恰到好处。某兴趣小组为了探究热水与冷水混合后的温度和哪些因素有关,将不同质量、不同温度的水在绝热容器中进行混合,并测出混合后的温度。实验结果记录如下表。 ( 1 )分析实验序号 1 与 2 与 4 的数据可知:当热水的温度 t 1 、冷水的温度 t 2 与冷水的质量 m 2 保持不变时,混合后的温度 t 随热水的质量 m...
【单选题】由式得 i =C , 下面结论中正确的是 ( )
A.
电容两端电压越高 , 电流就越大
B.
电容两端电压的变化量越大 , 电流就越大
C.
电容两端电压的变化率越大 , 电流就越大
D.
电容量越大 , 电流就越大
【多选题】高频保护负序方向保护的原理接线图的主要构成元件有( )。
A.
双方向动作的负序功率方向元件
B.
具有工作线圈和制动线圈的板化继电器
C.
带延时返回的中间继电器
D.
出口跳闸继电器
【单选题】What's the biggest difference between the first and second green revolution in America?
A.
The first green revolution is to improve the food output while the second is not.
B.
The second green revolution is based on the theory of inserting genes while the first depends on that of crossbreeding.
C.
The technology that is used in the second green revolution has much more enormous potential than that of the first's.
D.
The second green revolution has caused harm to the environment while the first has not.
【单选题】下面是电解水过程的示意图,根据图式可得出的结论不正确的是 [     ]
A.
水是由氢元素和氧元素组成的
B.
水分子是由氢分子和氧分子构成的
C.
在化学反应前后,原子的种类和数目不变
D.
在化学变化中,分子可以再分,原子不可以再分
【单选题】由式得 ,下面结论中正确的是 ( )
A.
电容两端电压越高,电流就越大
B.
电容两端电压的变化量越大,电流就越大
C.
电容两端电压的变化率越大,电流就越大
D.
电容量越大,电流就越大
【简答题】A.what's more B.in the second place C.in addition D.on the other hand
【单选题】What is the main idea of the second paragraph?
A.
What had happened during the boy's way to grandmother's house.
B.
Why he didn't want grandmother to know about why his body was bruised.
C.
How the boy was looking forward to that particular evening.
D.
The reasons why he was so curious about the life in the Renaissance.
【判断题】当核酸复性时,碱基层层堆积,包在螺旋内部,它们之间的π电子相互作用,使紫外吸收值 增加 ,这种现象称为增色效应。
A.
正确
B.
错误
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