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【单选题】
分类法在化学学科的发展中起到了非常重要的作用.下列分类标准合理的是(  ) ①根据氧化物的元素组成将氧化物分成酸性氧化物、碱性氧化物 ②根据分散系分散质微粒大小将分散系分为溶液、胶体和浊液 ③根据水溶液导电能力的大小将电解质分为强电解质和弱电解质 ④根据组成元素是否含有碳元素将化合物分成无机化合物和有机化合物 ⑤根据反应中是否有电子转移将化学反应分为氧化还原反应和非氧化还原反应 ⑥根据反应的热效应将化学反应分为放热反应和吸热反应.
A.
①②
B.
①③④
C.
②③⑤
D.
②⑤⑥
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举一反三
【单选题】Match each of the following topic sentences with a supporting detail from below:
A.
This has been put down to the current economic climate, which shows no sign of improving.
B.
The main reason for this is that they make sure their recommended candidates are suitable.
C.
Employers understand that there is a learning curve in every position.
D.
An obvious example is computer literacy, which is a must in every office nowadays.
E.
These include classics like “What’s your greatest weakness?” and candidates should have an answer prepared.Very few people in a new job could carry out their duties perfectly from the start.
【单选题】全口义齿初戴时,产生疼痛的原因不包括
A.
组织面有小瘤
B.
颌位关系不正确
C.
个别牙有早接触
D.
印模、模型不准
E.
选用的人工牙为瓷牙
【单选题】牙种植术的适应证不包括( )
A.
上下颌部分或个别缺牙
B.
磨牙缺失或游离端缺牙的修复
C.
全口缺牙
D.
口腔卫生不良
E.
活动义齿固位差、无功能、黏膜不能耐受者
【单选题】Which of the following is NOT TRUE about writing topic sentences?
A.
A topic sentence must be a complete sentence.
B.
A topic sentence should be neither too general nor too specific.
C.
A topic sentence should not have unrelated controlling idea.
D.
A topic sentence is usually the last sentence in a paragraph.
【简答题】为什么说 云计算对于云和端两侧都具有传统模式不可比拟的优势?
【单选题】Which of the following is NOT TRUE about writing topic sentences?
A.
A topic sentence is usually the last sentence in a paragraph.
B.
A topic sentence should not have unrelated controlling idea.
C.
A topic sentence should be neither too general nor too specific.
D.
A topic sentence must be a complete sentence.
【判断题】While writing the supporting sentences, we must keep one thing in mind: Each sentence after the topic sentence should support the topic sentence.
A.
正确
B.
错误
【单选题】辅助性矫治牙齿移动的适应症--小范围牙移动(MTM)不包括
A.
多生牙导致的前牙间隙
B.
个别前牙扭转、错位,但没有显著牙量骨量的不调者
C.
过大邻牙间隙
D.
骨性前牙开合:
【简答题】个别牙齿错位包括:唇向、()、()、腭向、()、()、高位、()、()、易位、()等错位。
【简答题】7-2 内容:报刊阅读解析 2 (个人版) 出处:流利阅读 Nov.5 Teachers must keep alert to protect children from bullying 要求: 对文章进行结构解析,找出 Thesis Statement 和 Topic Sentences ,及各点中重要的 details/supports ,方式各异, ( 注意:只列最重要且必要的细节,而非 ...
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