如果通过一份遗嘱的笔迹真伪来确定这份遗嘱的真实性,此时这份遗嘱是属于下列法定证据中的______
A.书证 B.物证C.鉴定结论 D.勘验笔录
参考答案:B
With a lot of homework to do this evening, Tom’s mother will allow him to watch TV ________. [ ]
A. in no time
B. at one time
C. at no time
D. at a time
当采用高强气体放电灯作为一般照明时,在经常有人工作的场所,其照度值不宜低于()lx。
A.100
B.50
C.30
D.20