问答题

只要我们学习努力，就能够克服一切困难。

答案：正确答案：So/as long as we study hard, we will be able to overcom...

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All staff will be very careful and keep our customers’ material strictl （） . A. private B. confident C. confidential D. mysterious

12.神经阻滞规律：、。

答案：细易、粗难；先无髓、后有髓