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不定项选择
为了使崁件牢固地固定在塑件中,崁件表面必须有适当的止动结构,防止崁件松动或脱出。( )
A.正确
B.错误
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土壤通气性是指土壤孔隙与大气之间二氧化碳与 的交换性能。这种交换主要通过大孔隙进行,耕层上部大孔隙较多则土壤通气性良好。
单项选择题
Which of the following is not true about the ways of presenting grammar in the classroom? ( ) A. In the deductive method, sometimes comparisons are made between the native language and the target language. B. In the deductive method, the teacher provides learners with authentic language data. C. The guided discovery method is similar to the inductive method in that the students are induced to discover rules by themselves. D. The inductive method is often criticized because little attention is paid to meaning.
单项选择题
在HTML中,div+css可以用作排版布局,表格的也可以。 A.
对 B.
错
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