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【单选题】
下列有机物检验方法正确的是A.
取少量卤代烃加入NaOH水溶液共热，冷却，再加入AgNO 3 溶液检验卤代烃中卤原子的存在
B.
用酸性KMnO 4 溶液直接检验乙醇与浓硫酸反应是否得到乙烯
C.
用燃烧的方法鉴别甲烷与乙炔
D.
用新制CaO检验乙醇中是否含有水分
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举一反三
【单选题】Shall we ______ the chattering old lady until the end of the holiday? It’s awful!
A.
be stuck to
B.
be stuck at
C.
be stuck with
D.
be stuck on
【单选题】I wish you’d stop ( chattering) on about things you don’t understand.
A.
singing
B.
shouting
C.
talking idly
D.
whistling
【单选题】Birds were chattering somewhere, and occasionally he could hear a vehicle pass _______ on the highway.
A.
away
B.
through
C.
by
D.
out
【单选题】(P181)下列关于清洁、卫生用具标识的叙述,错误的是C
A.
拖把、扫帚于把手上30 cm上端涂上相应颜色:治疗室、换药室、办公室用黄色标记;配餐室用绿色;病房、走廊用蓝色;卫生间用红色
B.
治疗室、换药室、办公室、配餐室用蓝色水桶;病房、走廊、卫生间用红色水桶,水桶按拖把分类挂上所用室间牌
C.
护理单元、医院环境的医疗垃圾用白色垃圾袋
D.
护理单元、医院环境的医疗垃圾用黄色垃圾袋
【单选题】A Better Choice The next time you overhear a friend or co-worker chattering excitedly about SOHO, don't assume that they are talking about New York. In today's business world SOHO refers to 'Small Off...
A.
earning easy money at home
B.
making a life while making a living
C.
avoiding the complex office policies
D.
having more fun to work at home
【简答题】No one likes to hear constant chattering or___________ (high-pitched)laughing.
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