单项选择题

The __________ of summer is the most pleasant time to travel around Mongolia.
A、first quarter
B、second quarter
C、third quarter
D、last quarter

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The Four Great Classical Novels are Dream of the Red Chamber, Water Margin, Romance of the Three Kingdoms, and (____) .

答案： Journey to the West

单项选择题

中国现已查明的种子含油量在40%以上的植物为（）。 A. 154种 B. 159种 C. 148种 D. 166种