啤酒按色泽分类()
A.淡色啤酒
B.浓色啤酒
C.黑啤酒
D.白啤酒
参考答案:A, B, C, D
Part A You will hear a lecture about shingles, an infectious disease. As you listen, answer Questions 1 to 10 by circling TRUE or FALSE. You will hear the talk ONLY ONCE. You now have 1 minute to read Question 1 to 10.Questions 1 to 10:
You can develop shingles whether or not you have had chickenpox.
气相色谱为法测定水中有机磷农药时,若水体中有机物质含量较多,萃取时振荡速度越快,乳化现象越严重。