维持机体新陈代谢所必需的能量，为小儿所特有的是
A．基础代谢B．生长发育所需C．食物特殊动力作用D．活动所需E．排泄损失能量
参考答案：B
以手打式制作奶泡时，牛奶加热至（）摄氏度左右，打发奶泡效果最佳。
A、10
B、30
C、50
D、60
What concern will the test-tube baby raise according to the passage
A．Whether the pregnancies of test-tube babies would be normal.
B．Whether the test-tube babies would be encouraged.
C．Why the proportion of defected babies is so high.
D．Why the number of Caesareans is so high.
