还没有登录哦!

[Issue Essay]

试题详情

题目:

Analytical!

选项:

答案:

提问:

For some birds the sense of smell appears to paly a role in navigation, since pigeons with surgically removed olfactory nerves ( were found to have increased difficulties ) in homing. A. were found to have increased difficulties B. have been found to have increased difficulty C. were found to have increasing difficulty D. had been found to have increased difficulties E. have been found to have increasing difficulties 答案是B,我选的A。不明白为什么要用现在完成时,而且感觉困难应该是复数。麻烦老师讲解。

解答:

点赞0
阅读241712
解答: sysadmin

提问:

请问老师,这道选什么?

解答:

点赞0
阅读282244
解答: 陆旭老师

提问:

老师,请问这题选什么?

解答:

点赞0
阅读282260
解答: 陆旭老师

提问:

问问老师,这道题选什么

解答:

点赞0
阅读282238
解答: 陆旭老师

提问:

请问这道题选什么

解答:

点赞0
阅读281769
解答: 陆旭老师

提问:

请问老师,这题选什么

解答:

点赞0
阅读282382
解答: 陆旭老师

提问:

请问老师.这题选什么

解答:

点赞0
阅读280848
解答: 陆旭老师

提问:

请问老师,这道题选什么

解答:

点赞0
阅读280091
解答: 陆旭老师

提问:

请问老师,这道题选什么

解答:

点赞0
阅读280541
解答: 陆旭老师

提问:

请问老师,这道题选什么?

解答:

点赞0
阅读282412
解答: 陆旭老师

提问:


解答:

点赞0
阅读279682
解答: 徐小梅老师

问个问题

点我领取
免费专项课程
在线咨询