多项选择题

合成工艺路线的设计与选择需要考虑哪些方面的因素（）

A．具有工业生产价值。
B．质量可靠、经济有效、过程安全、环境友好。
C．合成路线的长短。
D．工艺过程的难易。

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单项选择题

在白居易给自己的诗歌分类中，《长恨歌》属于下列哪一类：

A．讽谕诗
B．杂律诗
C．感伤诗
D．闲适诗

单项选择题

What will happen to the equilibrium price and quantity of new cars if the price of gasoline rises, the price of steel rises, public transportation becomes cheaper and more comfortable, and auto-workers negotiate higher wages?
A、Price will fall, and the effect on quantity is ambiguous.
B、Price will rise, and the effect on quantity is ambiguous.
C、Quantity will fall, and the effect on price is ambiguous.
D、Quantity will rise, and the effect on price is ambiguous.