搜题请搜索小程序“爱下问搜题”
问题 单项选择题

接种环的烧灼灭菌应该在何时进行？（）

A使用前

B.使用后

C使用前及使用后

D.储存前

答案

参考答案：C

单项选择题

下列叙述与Lidocaine Hydrochloride不符的是()

A．含有酰胺结构

B．酰胺键邻位有2个甲基

C．具有抗心律失常作用

D．与苦味酸试液产生沉淀

E．稳定性差，易水解
查看答案
单项选择题

For many years, the principle goal of computer (73) was to write short pieces of code that would execute quickly. The (74) needed to be small, because memory was expensive, and it needed to be fast ,because processing power was also expensive.

A. users B. programmers C. thatD. program
查看答案