山区中常处于背阴坡上种植的农作物产量较低，原因是下列哪一过程受影响[ ]
A．呼吸作用
B．光合作用
C．蒸腾作用
D．传粉
B
I still remember ______ to the hospital, supported by my class teacher when I was ill at school.
A．to be taken
B．being taken
C．to take
D．taking
商业贿赂的行贿主体是经营者。商业贿赂的受贿主体是行贿主体交易相对人中能够影响交易决策的个人。( )
