猪笼草是一种食虫植物，它以瓶带盖的叶捕捉昆虫，并以其分泌物消化虫体。为检测此分泌物含

下列选项中不是此图分类依据的是

A．有无膜结构

B．单层膜还是双层膜

C．是否含有色素

D．是否普遍存在于动植物细胞中

已知0.1 mol/L的醋酸溶液中存在电离平衡：CH₃COOHCH₃COO^-＋H⁺，要使溶液中

c(H⁺)/c(CH₃COOH)值增大，可以采取的措施是[ ]

A．加少量烧碱溶液

B．降低温度

C．加少量冰醋酸

D．加水

用括号内所给动词的适当形式填空

小题1:She ___(write) twenty pop songs which are liked by fans by the end of last year.

小题2:________(quarrel) with others isn’t good manners for everyone.

小题3:－         the price           (include) coffee and hamburgers?

－I’m afraid not.

小题4:The teacher told us that three quarters of our earth         (cover) by water.

小题5:Everyone knows that the disabled mustn’t __________ (laugh) at

小题6:We should try our best to prevent the air pollution                (live) a happy life.

小题7:With all lights on, the hall______ (become) as bright as day when we arrived.

小题8:How soon do you think we            (get) to the hotel?

小题9:Mr. Green told me that his family        (go) for a holiday the next week.

小题10:–Did you see him come in just now?

什么是数据的传输速率？

入库检验工作的要求是（）。

A．及时

B．准确

C．严格

D．经济

E．定时