【简答题】Translate the following sentences into English. 大卫把每幅图片都研究了两遍,又仔细地阅读了图片说明。
【判断题】一个至少含有两个元素,且没有零因子的有限环是除环。
【简答题】大卫把每幅图片都研究了两遍,又仔细地阅读了图片说明。caption
【判断题】一个至少有两个元且没有零因子的有限环是一个除环
【单选题】大卫把每幅图片都研究了两遍,又仔细地阅读了图片说明。
A.
David studied each photo and read the captions .
B.
David studied each photo twice and read the captions carefully.
C.
David study each photo twice and read the captions .
D.
David study each photo twice and read the captions carefully.