为了使y=sinωx（ω＞0）在区间[0，1]上至少出现50次最大值，则ω的最小

下图是小明同学在“化学实验操作考查”中相关的实验操作，其中正确的是（　　）

A．

氧气验满

B．

滴加液体

C．

过滤

D．

量取35ml液体

“用药”的含义是指病人服用药品。

A: How does your daughter like her new school
B:().

A. Fine. She seems to have made some new friends in no time.

B. She likes it so much that she’ll soon be reluctant to leave the school.

C. Though she likes the new school, she loves her old school much per.

D. Well, I’m afraid I don’t know exactly.

编制管理必须坚持统一审批、严格管理、服务实践、协调发展的原则。( )

纸张引起的火灾属于（）。

A.A类火灾

B.B类火灾

C.C类火灾

D.D类火灾