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【判断题】
艾滋病是由人类免疫缺陷病毒所引起的一种性传播疾病。A.
正确
B.
错误
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反馈参考答案：
举一反三
【多选题】想要得到免费、优质和高效的数据集,我们需要注意的是:
A.
保证数据集不混乱，否则要花费大量时间来清理数据
B.
数据集不应包含太多行或列，否则会难以使用
C.
数据越干净越好，清理大型数据集可能非常耗时
D.
数据集中数据的量越大越好
【简答题】把下列句子改成被动语态。 We built a library in our school last yea A library _____ _____ in our school last year. Did you plant many trees at this time last year. _____ _____ _____ _____ at this time last year. T...
【单选题】The term congnitivism is often used loosely to describe methods in which students are asked to ______ rather than simply______
A.
repeat, think
B.
do, repeat
C.
think, repeat
D.
think, do
【简答题】The term is often used loosely to describe methods in which students are asked to think rather than simply repeat.
【单选题】Not only you but also she ______ about the result at this time last year.
A.
worries
B.
was worrying
C.
were worrying
D.
had worried
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