搜题请搜索小程序“爱下问搜题”
问题
单项选择题
不锈钢中合金元素含量最高的是（）。
A.锌
B.铬
C.镍
D.铜
答案
参考答案：
B
补全对话，情景问答
给下列的问句选择答语。
( ) 1. Your Chinese is very good.
( ) 2. What would you like?
( ) 3. How do you do?
( ) 4. Here is a gift for you.
( ) 5. I like books.
A. Some milk, please.
B. How do you do?
C. Me, too.
D. Thank you. It's good.
E. Thank you.
查看答案
单项选择题
精密测量用单毛细管式密度瓶由于毛细管很细，对于（）变化灵敏度高。
A、温度
B、湿度
C、粘度
D、真空度
查看答案
