关于一次性使用无菌注射器的质量要求,正确的是()
A.无菌
B.无菌、无热原
C.器身密合性好
D.无溶血反应,无急性全身毒性
E.无菌、无热原,无溶血反应,无急性全身毒性
参考答案:E
I still remember that terrible accident a few days ago, ____ more than 20 pupils were killed.
A.where
B.that
C.on which
D.which