E玫瑰花环用于检查（）.
A.T细胞的数量
B.B细胞的数量
C.NK细胞的数量
D.吞噬细胞的数量
参考答案：A
The police got to _____ was once an old yard _____ the workers used as a store. [ ]
A. what; where
B. which; where
C. that; that
D. what; which
酸性气火炬有（）个长明灯，（）个热电偶。
