下列哪项是探究“光对鼠妇生活的影响”实验中的一组对照实验条件[ ]
A．阴暗、明亮
B．潮湿、干燥
C．温暖、寒冷
D．食物多、食物少
答案：A
—What do you think will be the future of your new invention?
—I’m sure it will have many different _________ in the industry.
A．applications
B．responsibilities
C．characters
D．Entrances
（-18）÷（-9）=______．
