第4题:[单选题]If the exchange rate with the dollar continues to drop,__________the country's businesses will certainly lose money. A.much B.much of C.many D.many of 参考答案:D 从空格开始到“business”结束的部分为主句的主语,因此可以用“不定代词+0“the+名词”结构构成主语的B和D为正确答案的备选项。空格后的名词“businesses”为可数名词的复数形式,因此D为正确答案。
第10题: [单项选择]What can we learn from the passage A. It is very expensive to build a wind tunnel. B. Wind tunnels are very essential in testing planes. C. Scientists still have a lot to learn about wind tunnels. D. There are new ways to feed air to the test section. 参考答案:B 答案解析:【解析】文章最后一段说明wind tunnels 在检测新飞机的性能上是非常重要的。故B正确。
第11题: [单项选择]颞颌关节双侧脱位,面部的畸形是()。 A. 口半开位 B. 吞咽困难 C. 下颏骨向前下突出 D. 口角歪斜 E. 下颌向健侧倾斜 参考答案:C