无机胶凝材料又称为矿物胶凝材料。

根据短文内容，选择正确答案。

It’s Sunday morning．There are many people in the park，some boys  are playing basketball．There are some girls under a big tree．They’re singing and dancing．What are those women doing? They are drinking tea．Look at the woman in a blue coat．Who's she? She’s my mother．She is talking to Lin Feng．Lin Feng is her student．He is a good student．He studies hard．He’s good at all the subjects． And he's friendly to all his teachers and his friends．

小题1:The boys are _________.

A．singing

B．playing basketball

C．dancing

D．drinking小题2:My mother is _______.

A．a teacher

B．an office

C．a doctor

D．a woman小题3:Lin Feng is in__________.

A．my home

B．the classroom

C．the zoo

D．the park小题4:Who’s under a big tree?  __________

A．Some people

B．Some women

C．Some girls

D．Some boys．小题5:what color is my mother's coat? It’s _________.

A．blue

B．white

C．red

D．yellow

被油品浸透了的衣服应立即脱去，身上被油品污染的部位应用（）和水彻底清洗。

A、肥皂

B、酒精

C、碘酒

D、洗衣粉

报价的原则是在（）基础上不附加评价：（）

A、清楚、明白

B、严肃、认真

C、客观、公正

D、严肃、明白

比较静水池塘与流水池塘的养殖特点和差别、以及管理重点。

建没性冲突