胃肠道手术,术前禁食的主要目的是()
A.避免手术困难
B.避免手术后腹胀
C.预防麻醉中呕吐造成窒息
D.防止术后吻合口瘘
E.早期恢复肠蠕动
参考答案:C
— I'm sorry I left my exercise book at home.
— Don't ______ it to school tomorrow, please. [ ]
A. forgot to take
B. left to bring
C. forget to bring
D. left to take
良好的地基应具有较高的承载力和较低的()。