(1)选择适当的试剂除去下列物质中的少量杂质(括号内为杂质): 溴苯(溴):试剂

题型:实验题

问题:

(1)选择适当的试剂除去下列物质中的少量杂质(括号内为杂质):

溴苯(溴):试剂______,反应方程式_________________________;

甲烷(乙烯):试剂______,反应方程式_________________________;

(2)选择合适的试剂鉴别下列物质:

苯和甲苯:试剂__________________________________;

乙烷和乙炔:试剂_____________________________________。

考点:物质的分离离子的检验粗盐的提纯
题型:实验题

伤寒的临床表现除外()

A.玫瑰疹

B.草莓舌

C.柯氏斑

D.缓脉

E.肝、脾大

题型:实验题

“有一天,两个强盗闯入了夏宫,一个动手抢劫,一个把它付之一炬。”法国大作家雨果讲的事情发生在(    )

A.鸦片战争期间

B.甲午中日战争期间

C.第二次鸦片战争期间

D.八国联军侵华期间

题型:实验题

男,75岁,因寒热、大汗就诊,诊断疟疾。既往反复胸痛、双下肢浮肿10余年;以下哪种药物慎用:()

A.氯喹

B.奎宁

C.伯氨喹琳

D.磺胺类

E.青霉素

题型:实验题

男,52岁,持续发热35天,体温37.5~39℃,伴右季肋部疼痛,食欲下降,出汗,体重减轻5kg,曾在卫生院注射青霉素,口服诺氟沙星10天,近日疼痛加重,查体:Hb12g/L,WBC12.0×10/L,N0.88。

主要采取下列哪些检查,但应除外()

A.复查血常规

B.胸透了解膈肌位置及活动度

C.B超检查肝、脾、胆道系统

D.必要时行正侧位胸片检查

E.送小便培养

题型:实验题

One day while a girl was walking in the woods she found two starving songbirds. She took them home and put them in a small (16) . She cared for them and felt great love for them.
Once the (17) and per of the two birds flew from the cage. Therefore, (18) he flew close, she grasped him (19) . She felt glad, but suddenly she felt the bird go limp. She opened her hand and (20) in horror at the dead bird.
She noticed the other bird moving back and forth on the edge of the cage. She could feel his great need for (21) . She lifted him from the cage and (22) him softly into the air. The bird circled once, twice, three times.
The girl watched delightedly at the bird’s enjoyment. Her heart was no longer (23) with her loss. Suddenly the bird flew closer and (24) softly on her shoulder. It sang the sweetest melody that she had ever heard.
The fastest way to (25) love is to hold on it too tightly, while the best way to keep love is to give it WINGS!

Ⅱ.完型填空/Cloze

A.dropped

B.pulled

C.seized

D.tossed

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