—Nowadays the doctors are trying their b
题型：选择题
问题：
—Nowadays the doctors are trying their best to reduce the people’s fear they would be affected by the present disease called “Bird Flu （禽流感）”.
A．whether
B．which
C．that
D．when
题型：选择题
—Nowadays the doctors are trying their best to reduce the people’s fear they would be affected by the present disease called “Bird Flu （禽流感）”.
A．whether
B．which
C．that
D．when
