管道过热灯亮时（DUCTOVERHEAT），哪个过热电门闭合（）。A、190℉/88

搜题请搜索小程序“爱下问搜题”

问题单项选择题

管道过热灯亮时（DUCTOVERHEAT），哪个过热电门闭合（）。

A、190℉/88℃

B、210℉/99℃

C、250℉/121℃

D、390℉/199℃

答案

参考答案：A

阅读理解

Read and judge. (读短文，判断下列语句是否正确.正确的画“√”，错误的画“×”)

Hello! My name is Anna. I am a girl and I'm from China. I have a happy family. My father and

my mother are teachers. My grandma is a nice woman. She keeps (养) a cat at home. I have two

friends. They are Kelly and Bobby. We often fly kites in the park.

( )1. Anna is a Canada girl.

( )2. Anna's mother is a teacher.

( )3. Anna's grandmother keeps a dog at home.

( )4. Anna often flies the kite in the park.

单项选择题

某商品每件成本72元，原来按定价出售，每天可卖10件，每天利润为成本的25%；后来按定价的90%出售，每天销售提高到原来的2.5倍，照这样计算，每天的利润比原来增加（）元。

A．500

B．450

C．400

D．350