一般而言，由（）引起的国际收支不平衡是长期且持久性的。
A.经济周期更迭
B.货币价值变动
C.国民收入增减
D.经济结构变化
参考答案：D
世界上人口自然增长率最高的大洲是（ ）
A．亚洲
B．非洲
C．拉丁美洲
D．大洋洲
根据句意，用所给单词的适当形式填空。
小题1: What should we do to help the _________(home) people after the earthquake?
小题2: We do lots of outdoor _________(active) when spring comes.
小题3: By the time I got outside, the school bus __________ (leave).
小题4: Tim was seen _________ (get) out of the subway at the station on Centre Street.
小题5: I’ve bought a present for my father’s_________(forty)birthday.
