比较理想的冷冻麻醉药是
A．普鲁卡因B．利多卡因C．丁卡因D．可卡因E．氯乙烷
参考答案：E
I have _____ brothers _____ sisters, for I'm the only child in my family.
A. either…or
B. both…and
C. neither…nor
D. not…but
术语翻译：Institute Cargo Clauses（）
