In the clause …floods and drought are hurting crops and therefore raised corn and soybean prices, the action of hurting is the cause and the action raised is the result.
However, note that the action of hurting is in present progressive tense and hence, means that it is an ongoing action, while the verb raised is in simple past tense. This is illogical since result cannot precede the cause. Therefore, we have a verb tense error in this sentence.
定位不准确，不要往后定位，就在 deregulation of the airline出现那句话的中间changes that included dramatic growth in the corporate demand for travel services, as well as extensive restructuring and consolidation within the travel industry。选择最重合的选项E。
C是在后面的解决globalization dilemma 的方法，并不是deregulation of the airlines 的effect
扫描二维码，直接登录
with approval not needed...很ambiguous not needed 是在修饰approval ，好像approval还是要with的
the rasing of 感觉更像是rate自己的raise，而且也不够平行