A．They might encourage the research of heat tolerance crop.
B．They should take measures to control the rising food price.
C．They should put more effort on growing rice and soybean.
D．They are supposed to give up growing corn and wheat.

A．More men felt great stress and pressure than women.
B．The survey is conducted among high school students.
C．The percentage of students feeling overwhelmed is decreasing.
D．The survey is concerned with emotional health and stress.

A．Students are losing interest in learning.
B．Parents give too much pressure on students．
C．Learning can bring satisfaction to students.
D．Learning does not serve its purpose for students.