急性胰腺炎具有诊断意义的检查有
A．谷丙转氨酶
B．谷草转氨酶
C．碱性磷酸酶
D．淀粉酶
E．脂肪酶
参考答案：D,E
UPS不间断电源适用于中断供电时间为( )级的电力负荷。
A．min
B．mmin
C．s
D．ms
You might wonder how it________to live without eating for so many days.
A．keeps
B．Succeeds
C．manages
D．tries
