If a substance is dissolved in water or heated, it may _________

单选题 If a substance is dissolved in water or heated, it may __________ a gas.

A．give into
B．give over
C．give off
D．give away

参考答案C

解析:

单选题 In recent years much more emphasis has been put __________ developing the students' productive skills.

A．onto
B．in
C．over
D．on

单选题 In no country __________ Britain, it has been said, can one experience four seasons in the course of a single day.

A．other than
B．more than
C．better than
D．rather than

单选题 That summer I drove west with a friend, and we __________ a little money doing odd jobs and as much as possible visited his relatives.

A．picked up
B．stepped up
C．put aside
D．set aside