搜题请搜索小程序“爱下问搜题”
问题 选择题

—How many ________ are there on the farm now?

—Only one. [ ]

A. a sheep

B. sheeps

C. a cow

D. cows

答案

答案：D

填空题

根据句子意思,选择括号中所给词语的适当形式填空。

1. She      (mop) the floor when the pet cat fell asleep．

2. At the very _____ (begin), he found it interesting to study English.

3. It was very clear that he was very angry because he looked at me     (angry).

4. He always tells lies to me. I think he is a ______ (honest) boy, so I can't believe him.

5.Linda's mother      (come) back if she finishes her work this week.
查看答案
单项选择题

盐酸氯丙嗪

A．四氮唑比色法
B．铁-酚试剂比色法
C．异烟肼比色法
D．气相色谱法
E．碘量法下列药物可采用的含量测定方法为
查看答案