【单选题】Which of the following is a suggestion from the writer to people planning to live in the big cities?
A.
Move to a better part of the city.
B.
Talk to people not interested in it.
C.
Think carefully about everything.
【单选题】Which of the following is typical of a cosmopolitan city?
A.
People from different parts of the world live and work together.
B.
There are almost three million people living and working in the city.
C.
There are super amenities, ranging from the excellent shops and restaurants.
D.
People can enjoy an urban lifestyle. with cultural events such as concerts and operas.
【单选题】Which is NOT true of the people in the study?
A.
They'Il be from various areas
B.
They'll be from all income levels
C.
They'II be from all educational levels
D.
They'II be from all age groups
【简答题】关于单独海损与共同海损特点的比较,正确的表述包括( )。A. 单独海损是承保风险造成的,而不是由人的有意识行为作出的;共同海损必须是有意识的而不是一种意外的损失 B. 单独海损只涉及船舶或货物一方的利益;共同海损则涉及多方的利益 C. 单独海损适用委付;共同海损不适用委付 D. 单独海损只能由受损失一方单独承担;共同海损则是由所有的受益方按比例分摊
【单选题】下列关于硝酸甘油的不良反应,叙述不正确的是()
【简答题】(5分)物质的结构、性质和用途是化学研究的重要内容。 (1)洗涤剂能去除餐具上的油污,是因为它具有 功能。 (2)氯气(Cl 2 )常用作自来水消毒剂,其实验室制法为:MnO 2 +4HCl(浓) △ X+Cl 2 ↑+2H 2 O,X的化学式为 。 (3)氧气和臭氧(O 3 )的化学性质有差异,是因为 (从微粒角度解释)。 (4)生石灰常用作食品干燥剂,其原因是 (用化学方程式表示)。 (5)石...