脂溶性维生素和水溶性维生素的加工稳定性有所不同，脂溶性维生素一般比水溶性维生素对热比较稳定。（)

These flowers are watered______.

A. each other day

B. every other day

C. each of two days

D. every of two days

She makes it a rule to ______ aside an hour each day for learning new vocabulary.

A．place

B．set

C．give

D．leave

Each day we get a lot of messages from_____________

A．sports news

B．our decisions and opinions

C．mass communication

D．our messages

E．source of information

F．the mass media

A．The contradiction is that every day we get two sets of messages disagreeing with each other．

B．The contradiction is that every day we get two sets of strange and unusual messages．

C．The condition is that every day we get two sets of messages echoing each other．