合理膳食对青少年的生长发育非常重要。下列饮食习惯正确的是[ ]
A．不挑食，不偏食
B．不吃早餐
C．以可乐等饮料代替饮水
D．常吃煎炸食品
答案：A
A small plane crashed into a hillside five miles east of the city, _________ all the four people on board.
A．killed
B．killing
C．having killed
D．to kill
肾结核的首发症状是
A．尿频
B．脓尿
C．血尿
D．肾区疼痛
E．发热、盗汗
