题目

The homework is not as heavy as ________he used to get. All________ he needs to do is improve English. A . what, that B . that, which C . which, that D . what, which 答案：A亚当·斯密说：“发现美洲和经过好望角至东印度群岛的航道，是人类历史上所记载的最伟大、最重要的事件。”文中所谓“发现美洲和经过好望角至东印度群岛的航道”的历史人物分别是（   ） A．麦哲伦、达·伽马B．哥伦布、达·伽马C．哥伦布、迪亚士D．迪亚士、麦哲伦