单项选择题The cake looks ______ and it tastes even _____.A、well; goodB、nice; betterC、good; worseD、better; best
未分类题交易成本下降的原因有哪些?()。
单项选择题It’s dangerous to swim in a ________ river.A、roughB、roughingC、calmD、roughed
未分类题在以下()情况下,才可采用最后通牒策略。
单项选择题I wonder ____ he can get it done in such a short time.A、whenB、howC、whereD、where