题目
A.their highest point
B.at its highest point
C.at their highest point
D.its highest point
第1题
A.cap
B.gate
C.indifference
D.gap
第2题
The need of the hour is to enhance and _______(large) the scope of cooperation between nations.
第4题
Why did one scientist expose birds to artificial daylight?
A.To test the relationship between daylight and a disease of the glands common to birds.
B.To test the relationship between daylight and migration.
C.To test the relationship between migration and temperature.
D.To test the relationship between daylight and changes in the season.
第5题
第7题
By joint efforts we can () both friendship and business.
A. increase
B. encourage
C. expand
D. extend
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