胃癌直接向十二指肠浸润均不超过()
A．1cm
B．2cm
C．3cm
D．4cm
E．5cm
参考答案：C
A．这是魔术，你所看到的是一种假象
B．火焰的温度低于棉布的着火点
C．手帕上的水汽化吸热，使手帕的温度低于棉布的着火点
D．酒精燃烧后使棉布的着火点升高
Some parents are just too protective. They want to_________their kids from every kind of danger, real or imagined.
A．spot
B．dismiss
C．shelter
D．distinguish
