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【单选题】
生活中留心处处皆学问。的相声《醉酒》中有这么几句：“……甲：（手电棒）一摁电门，出来一个光 柱。乙：哎，出来啦。甲：你瞧这个！你顺着我这柱子爬上去。乙：噢，柱子啊？甲：你爬！乙：那个你爬怎么样啊？甲：你别来这一套，我懂！我爬上去，我爬到半道，你一关电门我掉下来啦……”这段经典相声中提到手电筒在夜晚会产生一道光柱，这就是胶体的丁达尔效应。下列分散系能产生丁达尔效应的是 [ ]A.
硫酸铜溶液
B.
稀硫酸
C.
石灰浆
D.
氢氧化铁胶体
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【单选题】“取本品约l0mg，置试管中，加水2ml溶解后，加氨制硝酸银试液lml，即发生气泡与黑色浑浊，并在试管壁上生成银镜”该鉴别反应是利用异烟肼的（）性质
A.
水解性
B.
还原性
C.
弱碱性
D.
缩合反应
E.
开环反应
【单选题】听力原文：If our products are to compete on the international market, advanced technology is a key element. The higher the technology, the better the products, and the greater the competitiveness. (28)
A.
Our products cannot compete on the international market because of their higher prices.
B.
Our products exhibit greater competitiveness even though they lack advanced technology.
C.
Advanced technology will increase our expense to compete on the international market.
D.
Advanced technology contributes to the excellence and competitiveness of our products.
【多选题】What does international market research include?
A.
International economic environment
B.
International political environment
C.
International legal environment
D.
Cultural environment abroad
【简答题】According to the national division, market can be divided into market and international market.
【单选题】翻译中的减词法,下面正确选项是
A.
省去汉语原文中的重复、过于近似的表达
B.
省去修饰词，让句子变简单
C.
减词法目的是为了让句子表达变得更高级
D.
减词法省去原文中复杂的语法形式
【单选题】When can the average middle-aged couple look forward to taking care of their elderly parents?
A.
When they reach their fifties.
B.
After their own children have become adults.
C.
When they can live longer after an illness.
D.
After they have retired.
【简答题】请填写网店常用的物流方式 。 大件商品一般使用( ),可以分为 汽车托运 、 铁路托运 和佳吉、华宇物流公司托运、德邦物流 ( ) 网点多,全国任何地方可达,丢件情况少,但速度慢。 ( ) 价格便宜但不提供门到门服务。 ( ) 速度快、价格实惠、网点常用,但服务质量参差不齐,纠纷投诉较多。 ( ) 适合大件商品的运送,运费相对于快递公司便宜...
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【简答题】According to the national division, market can be divided into market and international market.