【单选题】The lecture which lasted about three hours was so __________ that the audience couldn‘t help yawning.
【单选题】Which of the following is not a correct understanding about the word 'extra' in giving a tip?
A.
Extra is a fixed charge in some cities.
B.
Extra is similar to a tip in some cases.
C.
If the 'extra' is paid, one doesn't tip any more.
D.
Some hotels require people to pay an 'extra' service charge.
【简答题】Which of the following statements about a money market is NOT true according to this passage?
【单选题】--Is everything __ we need to do __? --Yes. You needn’t worry about it.
【单选题】下列行为中属于双方民事法律行为的是( )。
【单选题】下列民事法律行为中,属于双务行为的有( AB )
【简答题】装配尺寸链的计算类型?各类型的涵义?应用场合?
【单选题】如图表示某同学利用紫色洋葱鳞片叶作为实验材料,观察植物细胞质晚分离与复原的基本操作步骤。下列相关叙述正确的是( )【图片】
B.
蔗糖溶液浓度越高,越能更快地观察到质壁分离与复原的现象
C.
本实验主要观察原生质层与细胞壁之间的位置关系等
【单选题】I don't like football, but some people are ______ about it, which is beyond my comprehension.