下列不能储放在相邻近地方的两种(类)药品是()。
A.盐酸和硫酸;
B.氧化剂和还原剂;
C.氢氧化钠和碳酸钠;
D.四氯化碳和石油醚。
参考答案:B
肛管及肛门周围恶性肿瘤与直肠腺癌两者之比约为()
A.1:25
B.1:15
C.15:1
D.20:1
E.25:1
My jacket has _____color _____ yours, but mine is bigger than yours. [ ]
A. the same; as
B. same; as
C. different; from
D. the same; to