皮皮学,免费搜题
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搜题
【单选题】
用精馏塔完成分离任务所需要理论板数NT为8(包括再沸器),若效率ET为50%,则塔内实际塔板数为( )。
A.
16
B.
12
C.
14
D.
无法确定
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皮皮学刷刷变学霸
举一反三
【单选题】下列选项中,可以更新视图中原有数据的语句是()。
A.
INSERT
B.
ALTER
C.
CREATE OR REPLACE VIEW
D.
UPDATE
【简答题】Sentence Patterns Rewrite the following sentences by following the model sentence pattern. Attention: anything but =not at all, by no means, never Model:The medium is, or so it seems, anything but lin...
【简答题】Rewrite the following sentences as required(根据所给要求,改写下列句子。每空格限填一词) . 1. The new product consists of four main parts inside. (改为一般疑问句) _________ the new product _________ of four main parts inside? 2. ...
【单选题】当你扫描二维码,发现要填写个人信息特别是银行卡号和密码信息时,你该怎么办?
A.
翻出银行卡填写卡号和密码
B.
认真核实该二维码并咨询110
C.
把这个二维码转发
【简答题】Rewrite each sentence with the word or phrase in brackets, keeping the same meaning. The first part has been written for you.(注意:句末的句号不要写在答案里) Some students still don't know what to do after class to ...
【多选题】在国际贸易中,合同有效成立的条件包括
A.
当事人应当具备签订合同的行为能力
B.
合同必须有对价或者约因
C.
合同的内容和形式必须合法
D.
合同当事人的意思表示必须真实
【简答题】Follow the example and rewrite the sentences by using "so that". EXAMPLE: They feel they have to spend more time on the job after normal working hours. They want the people who can promote them to see...
【简答题】anything but Look at the sentence: Yet no make-up at all is the opposite of unmarked . You can rewrite it like this: Yet no make-up at all is anything but unmarked . 对比上下两句中的划线部分,用anything but改写下列句子,填...
【判断题】科学技术是生产力中最活跃和起决定作用的因素,表明科学技术是生产力一个独立的最重要的实体性要素。
A.
正确
B.
错误
【单选题】科学技术是生产力表明( )
A.
它是生产力的独立要素
B.
它是现实的直接的生产力
C.
它渗透到生产力的各要素中可以转化为现实的生产力
D.
离开科学技术就没有生产力
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