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( )整粒后的粗粒可适当捣碎后再筛选。A.
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【单选题】The best title for the passage might be
A.
Japanese Animation, Why is It to Decline?
B.
Japanese Animation, Who is the Giant?
C.
Japanese Animation, What does It Need?
D.
Japanese Animation, How to Stick Out?
【简答题】双绞线由两根相互绝缘的、绞合成匀称螺纹状的导线组成,下列关于双绞线的叙述中,错误的是 ____。 A、 它的传输速率可达10~100Mb/s,传输距离可达几十千米甚至更远 B、 它既可以用于传输模拟信号,也可以用于传输数字信号 C、 与同轴电缆相比,双绞线易受外部电磁波的干扰,线路本身也产生噪声,误码率较高 D、 双绞线大多用作局域网通信介质
【简答题】现有100g溶质质量分数为15%的过氧乙酸溶液，欲配制成溶质质量分数为1.5%的溶液来使用，需加水多少克？
【单选题】Which of the statements best summarizes the main idea of the passage?
A.
The death of Japanese fisherman caused tension between Japan and Russia.
B.
The dispute over the chain islands initiated the incident.
C.
Japanese foreign minister summoned Russian's deputy ambassador to handle the dispute.
D.
The Russian patrol captured the Japanese vessel and took three fishermen into custody.
【简答题】A.She is going to study in another country. B.She received a letter from a Japanese friend. C.She got a job at a travel agency. D.She met a Japanese friend at a travel agency.
【单选题】What was true of the demonstrators?
A.
They were World War II victims.
B.
They burned a Japanese flag scribbled with their names.
C.
They were female college students.
D.
They were supported by the South Korean government.
【单选题】Which of the following is FALSE?
A.
Leeson failed when staking the company's money on Japanese derivatives.
B.
Leeson was extradited to Singapore.
C.
Leeson was arrested on his way back to London.
D.
Leeson accepted the six-and-half year sentence.
【简答题】实验室欲配制80mL 2mol?L ? 1 的KCl溶液，就配制该溶液的过程回答下列各小题： （1）不需要的仪器是 。 A.烧杯 B.100mL容量瓶 C.量筒 D.胶头滴管 E.玻璃棒 F. 50mL容量瓶 （2）配制时应称取KCl g。 （3）下列操作的正确顺序是（用字母表示） 。 A．冷却 B.称量 C.洗涤 D.定容 E.溶解 F.摇...
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