问题 选择题

下列实验操作不正确的是

A.制摩尔盐时用酒精洗涤产品,而在制阿司匹林时用水洗涤产品

B.配制浓硫酸和浓硝酸的混合酸时,将浓硫酸沿器壁慢慢加入到浓硝酸中,并不断搅拌

C.在海带中提取碘的实验中既可以用四氯化碳作萃取剂也可以用酒精作萃取剂

D.如果皮肤上不慎沾有苯酚,应立即用酒精清洗,不可用NaOH溶液冲洗

答案

答案:C

本题考查的是化学实验的有关内容。在海带中提取碘的实验中只能用四氯化碳作萃取剂,不可用酒精作萃取剂。C错。故本题选C。

名词解释
填空题

A Accommodation 住宿

One is never at a loss for a place to (1) in Malaysia.The country’s cities and major towns have a (2)  range of accommodation to suit all tastes and budgets. Most international (3)  hotels cater to total living requirements and as such, one (4) easily find restaurants, entertainment outlets and fitness centres within the (5)  complex.

Several resort hotels even have adjoining golf courses and (6)  parks with special privileges accorded to hotel guests. Family outings (7)  these hotels can be a practical yet fun-filled activity. Guests (8)  on longer stays may appreciate the serviced apartments situated within (9)  major cities.

Malaysia is also an excellent destination for romantic getaways, (10)  for honeymooners seeking an idyllic tropical retreat with (11) amenities. The country’s award-winning island resorts are paradises waiting to be (12)

For budget-conscious tourists, there is an array of accommodations located (13)  to amenities and tourist attractions. Budget accommodations in Malaysia are (14)  according to the Orchid Classification Scheme and include hostels, bed (15)  breakfast establishments, inns, boarding houses, rest houses and lodging houses (16)  Orchid rating is awarded to tourist accommodations offering basic facilities (17)  well as safe and clean premises.

Adventurous souls can try (18)  the innumerable value-for-money kampung-style chalets located along popular beaches. Nature (19)  seeking communion with nature in Malaysia’s world-famous nature parks such (20) Taman Negara will be amazed by the easy availability of chalets with modern facilities in these areas.

10.()