[听力原文]M: If there is something wrong, you can call me back.W: OK, sir. I’ll take good care of your baby. What is the woman()
A. Baby- sitter.
B. Doctor.
C. Teacher.
D. Nurse.
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芹菜素是()
A. 黄酮类化合物
B. 异黄酮类化合物
C. 查耳酮类化合物
D. 花色素类化合物
E. 橙酮类化合物
在黄酮类化合物中,二氢黄酮()
A. 三碳链的2,3位上有双键,而3位无羟基
B. 三碳链的2,3位上有双键,而3位有羟基
C. 三碳链的2,3位上无双键,而3位无羟基
D. 三碳链的2,3位上无双键,而3位有羟基
E. 三碳链的1,2位处开裂,2,3位与4位羟基构成α,β-不饱和酮
主板发审委人数较创业板发审委适当增加,并加大了行业专家委员的比例。( )
A. 对
B. 错
[听力原文]W: We do need another bookshelf in this room, but the problem is the space for it.M: How about moving the old dining table to the kitchen What does the man suggest they should do()
A. Find a larger room.
B. Sell the old table.
C. Buy two bookshelves.
D. Rearrange some furniture.