气管内插管、气管镜、食道镜等短时的操作宜选用
A.东莨菪碱
B.山莨菪碱
C.氯琥珀胆碱
D.阿托品
E.乙酰胆碱
参考答案:C
It has been five years ____ I came to this school.
for B. since C. whether D. when
“大苏”是指()。