第23题: [单项选择]设a="a"，b="b"，c="c"，d="d"，执行语句x=IIF((a＜b) Or(c＞d)，"A"，"B") 后，x的值为 A. "a" B. "b" C. "B" D. "A" 参考答案:D 答案解析:[解析] 在该题中，关键考查的是IIF()，IIF()函数的形式是：IIF(表达式，当条件为Tme时的值，当条件为 False时的值)，显然在题目中的表达式(a＜b) Or(c＞d) 为True，所以
第30题: [单项选择]The strange phenomenon has ______ and puzzled many scientists for more a century. A. annoyed B. embarrassed C. fascinated D. frustrated 参考答案:C 答案解析:[试题分析] 动词辨析题。
[详细解答] annoy：使愤怒，使生气，使烦恼。embarrass：使难堪。fascinate：吸引，迷住，使神魂颠倒。frustrate：使沮丧，使灰心丧气。
第32题: [单项选择]The news mainly talked about ______. It’s the ______ time the World Economic Forum has been held in the city. A. 1st B. 2nd C. 3rd D. 4th 参考答案:B 答案解析:事实细节题。题目问的是：这是第几次在该城市举办世界经济论坛。听力中明确提到“It’s the second time the event has been held in the city”，故选B。
