石膏的性状特征是（）A.呈长块状、板块状或不规则块状 B.用指甲不能刻划 C.煅石膏

短文填空 根据短文内容及首字母提示，补全空格内单词，使短文完整通顺。

Mo Yan, the Chinese writer, won the 2012 Nobel Prize in literature on October 11,2012. The 57-year-old writer whose r__小题1:___name is Guan Moye, was born in 1955 and g___小题2:up in Shandong Province. Mo Yan is his pen name that means “Don’t s__小题3:___” in Chinese. Both of his parents were f___小题4:___. When he was twelve years old,he l ___小题5:___school to work, first on the farm and l__小题6:___in the factory. In 1976, he joined the army and b__小题7:___to study literature and write.

Most of his works are set in his o__小题8:___hometown, Gaomi County, Shandong in northeastern China. He is the f___小题9:__Chinese-language writer to win the award. Millions of Chinese people were e___小题10:____and proud of him after they heard this. His achievements push us students to do more reading.

—Excuse me, what’s the_________usually used for?

--It’s used for protecting people from the rain.

A．raincoat.

B．shelf

C．airplane

D．soldier

对于结核性脑膜炎患者，下列哪些情况可考虑用糖皮质激素（）

A.颅内压增高明显

B.有脑疝形成

C.合并了结核瘤

D.抗结核治疗病情加重

E.椎管阻塞

在使用职业接触限值时，应注意( )等。

A．时间加权平均容许浓度的使用

B．最高容许浓度的使用

C．短时间接触容许浓度的使用

D．对于标以(皮)字的有毒物质，应积极防止皮肤污染

职业道德具有多变性和时代性。