用于诊断变形杆菌感染的是()。
A.结核菌素试验
B.肥达反应
C.锡克试验
D.外斐试验
E.溶血试验
参考答案:D
.--I can’t find Mrs. Wang. Where did you meet her this morning?
---It was in the school __ she worked.
A that B. which C. the one D. where
补充条件或问题,再解答。
1.一家水果店运进一批水果,第一天售出30%,第二天售出余下的60%, 。这批水果共有多少千克?
2.大小正方形边长的比是5:3,大正方形的周长是100厘米, ?