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We'll gather at the Students' Club at 8 p.m. this Friday, after the evening classes. ______
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【简答题】你看,正是因为它硬,常常用作高级研磨切割材料;也是因为它硬,随着科学技术的飞速发展,金刚石就更有用武之地了,许多尖端科学向它伸出了乞求的手。据目前所知,金刚石已被用作原子能工业上的高温半导体器件和散热片。可以预言,随着现代科学技术的发展,金刚石的用途将会越来越广。根据以上文字,可以推出表述正确的是( )。
【简答题】碳及其化合物在生活中应用广泛. ①将小块金刚石镶在玻璃刀头上用来裁玻璃;  ②将石墨用于制作电极; ③一氧化碳用作气体燃料;                  ④干冰用于人工降雨; ⑤一氧化碳可用于炼铁. (1)上述用途中,主要利用了物质的物理性质的有______.(填序号) (2)除④以外,写出二氧化碳的一条用途______. (3)干冰的物质类型不属于______.(填序号) A.混合物   ...
【简答题】II. Reading Comprehension Directions: There are 3 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), ...
【简答题】5 Spoken is the past /past participle of speak. ________
【简答题】(6分)碳及其化合物在生活中应用广泛。 ①将小块金刚石镶在玻璃刀头上用来裁玻璃; ②将石墨用于制作电极; ③一氧化碳用作气体燃料;                 ④干冰用于人工降雨; ⑤一氧化碳可用于炼铁。 (1)上述用途中,主要利用了物质的物理性质的有 。(填序号) (2)除④以外,写出二氧化碳的一条用途 。 (3)干冰的物质类型不属于 。(填序号) A.混合物 B.纯净物 C.化合物 D.氧...
【简答题】For example, one evening when it was so warm, I stayed awake __________ __________ until half pas1. For example, one evening when it was so warm, I stayed awake __________ __________ until half past e...
【单选题】Section B Directions: This section is to test your ability to understand short dialogues. There are 5 recorded dialogues in it. After each dialogue, there is a recorded question. The dialogues and que...
A.
Strangers.
B.
Colleagues.
C.
Interviewer and interviewees.
D.
Classmates.
【单选题】Section B Directions: This section is to test your ability to understand short dialogues. There are 5 recorded dialogues in it. After each dialogue, there is a recorded question. The dialogues and que...
A.
Strangers.
B.
Colleagues.
C.
Interviewer and interviewees.
D.
Classmates.
【简答题】小题1:Reading history books can not only improve our       (知识) of the past but also make us think小题1:Reading history books can not only improve our ____ (知识) of the past but also make us think. 小题2:The...
【单选题】Section A Directions: This section is to test your ability to understand short dialogues. There are 5 recorded dialogues in it. After each dialogue, there is a recorded question. The dialogues and the...
A.
The man's teacher
B.
The man's English score.
C.
The man's job.
D.
The man's study.
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