【单选题】Which document freed al slaves throughout the United States?
A.
Emancipation Proclamation
B.
The American Constitution
C.
Declaration of Independence
D.
Thirteenth Amendment to the Constitution
【单选题】蛋白沉淀法中常加入水溶性的有机溶剂,不能用于此法的溶剂是
【判断题】蔡英文和民进党在台湾地区领导人选举中的所作所为充分暴露其自私、贪婪、邪恶的本性。
【简答题】通常将多年生木本植物茎的次生木质部,称为()。
【单选题】What information can the people NOT know from this talk?
A.
The plans for the first day of tour
B.
The starting point of the boat trip
C.
The location of the River Thames
D.
The name of the most famous landmark
【单选题】( )是交易一方向另一方通过口头或函电方式发出的,想购买或想出售某项商品的一种表示,是买卖双方磋商交易的开始。