【单选题】你认为课前学习中最能帮助你学习的材料是什么?
【单选题】According to the passage, what is the best for both parents and children?
A.
They should adjust themselves to sharing the family expenses.
B.
Children should leave their parents when they are grown up.
C.
Adult children should visit their parents from time to time.
D.
Parents should support their children when they are in trouble.
【单选题】假设某商品的价格下降 10 %,消费者用于该商品的支出增加了 2 %,则这种商品的需求( )。
【单选题】Why didn't you write down what the teacher has said? You cannot just _____your memory.
【判断题】如点火提前角过大,混合气的燃烧在压缩行程中进行,气缸内的燃烧气体压力急剧上升,会给正在上行的活塞造成一短时间的巨大阻力,使发动机功率上升,而且爆燃严重。
【判断题】如点火提前角过大,混合气的燃烧在压缩行程中进行,气缸内的燃烧气体压力急剧上升,而且会产生较大的爆燃声音,会给正在上行的活塞造成一短时间的巨大推力,使发动机功率上升。
【单选题】本工程一层平面图中 FM1522 乙为( )
【判断题】如点火提前角过大,混合气的燃烧在压缩行程中进行,气缸内的燃烧气体压力急剧上升,而且会产生较大的爆燃声音,会给正在上行的活塞造成一短时间的巨大推力,使发动机功率上升。2
【单选题】Which of the following cannot explain why cash is critical to the health of an underground economy?
B.
Cash is hardly traceable.
C.
Cash is easily stolen.
D.
Cash is the lifeblood of the black market.