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【多选题】
根据观察者对观察内容是否统一设计、有一定结构的观察项目和要求，观察法可分为（）。A.
探索性观察
B.
验证性观察
C.
整体性观察
D.
无结构观察
E.
有结构观察
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反馈参考答案：
举一反三
【单选题】Why do you think they had not a' backup computer?
A.
Because it was easy down.
B.
Because it was very expensive.
C.
Because it was not advanced enough.
D.
Because it was not as big as the main computer.
【单选题】You afraid of doing homework. You know, it’s easy. Just be careful.
A.
don’t have to
B.
have to be
C.
don’t have
D.
don’t have to be
【多选题】比较金融现货交易和金融期货交易正确的是（ ）。
A.
金融现货交易的对象是某一具体形态的金融工具，而金融期货交易的对象是金融期货合约
B.
金融现货交易和金融期货交易的主要目的都是套期保值
C.
金融现货的交易价格是实时的成交价；而期货交易价格是对金融现货未来价格的预期
D.
金融现货交易和金融期货交易在交易方式和结算方式上是相似的
【单选题】符合无菌操作原则的描述是(易)
A.
无菌操作前30分钟清扫地面
B.
无菌包潮湿应待干后使用
C.
取出的无菌物品如未使用应立即放回原处
D.
无菌物品的有效期是2周
E.
操作时手臂保持在腰部水平以上
【简答题】Young people are perhaps better-known 1 spending money than saving it. But some new banking 2 are seeking to change that. These websites offer young people the information and tools they need to watch...
【简答题】如图，AD ∥ BC，AC，BD交于点E，S △ABC =5，S △EDC =2，则S △BEC =______．
【简答题】Sentence Check 3 Complete each sentence with the correct word from the box below. Use each word once. a. b lossomed b. route c. distressed d. swift e. fancy f. c onservative g. rendered h. despera...
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