最早刊登白话文、新体诗、改用新式标点符号的杂志是（） A．《中外纪闻》 B．《民

制作临时装片时，必须让盖玻片一端先接触水滴，然后轻轻盖上，主要目的是（　　）

A．避免盖玻片下面出现气泡

B．防止水溢出

C．增加透明度

D．防止实验材料移动

毒物中毒的严重程度与后果往往取决于作用毒物的剂量、作用的时间以及诊断和救治是否准确与及时等。对于急性中毒者，必须迅速做出准确判断，及时果断地采取有效的救治措施，以挽救生命、减轻损害程度。以下有关中毒后药物拮抗的事例中，属于物理性拮抗的是（）

A.药用炭吸附

B.弱碱中和强酸

C.二巯丙醇"驱汞"治疗

D.依地酸钙钠解救铅中毒

E.阿托品拮抗有机磷中毒

Complete the sentences with proper words.

1)   My grandfather doesn't like the W ____________way of life, so he came back to our

hometown last year.

2)   She has a very large v____________ and she can read English novels now.

3)   Being deaf and dumb makes c_____________ very difficult.

4)   His n___________ language is not Chinese but he can speak it fluently.

5)   Everyone went to see the film, me i_______________.

6)   He made repeated r______________ for help but nobody noticed that.

7)   He spoke for an hour but didn't a___________________  say anything important.

比释动能率的国际单位是（）

A.Rem/s

B.R/s

C.Rad/s

D.Gy/s

E.Sv/s

苍蝇一生经历卵、（）、蛹和成虫四个生长发育阶段。