酪素胶有()两种,其配方是不同的。
A、耐水性
B、非耐水性
C、融合性
D、分解性
参考答案:A, B
Ann has red hair and blue eyes. Tom has black hair and brown eyes. They have _____ _____ .[ ]
A. look different
B. different look
C. different looks
0.5号麦氏比浊标准管内含细菌浓度是 ()
A.0.5亿/ml
B.1亿/ml
C.1.5亿/ml
D.2亿/ml
E.2.5亿/ml