根据外国人申请来中国的事由,在其签证上标注相应的汉语拼音字母.其中()签证发给来中国留学、进修、实习6个月以上的人员。
A.L字
B.Z字
C.X字
D.D字
参考答案:C
In 1911, Madame Curie received a second Nobel Prize for her research, the first person
in the world _____ two Nobel Prizes. [ ]
A. receiving
B. received
C. to receive
D. being received
下列哪项是指软件在所给的环境条件下和给定的时间内能完成所要求功能的性质
A.健壮性
B.正确性
C.可靠性
D.可维护