汇集某一学科或若干学科或专业领域的基本知识、参考资料及数据,供随时查检的工具书是()。
A.手册
B.文摘
C.类书
D.年鉴
参考答案:A
more energy to my study instead of being crazy about Internet games, I would be sitting in a comfortable office now.
A.If I devoted
B.Had I devoted
C.Would I be devoted
D.Should I be devoted
对于诊断骨肉瘤最有价值的是()
A.AMY
B.ALT
C.GGT
D.ACP
E.AIP