X线机产生的X线能谱为()
A.连续能谱
B.单一能谱
C.混合能谱
D.无规律能谱
E.跳跃式能谱
参考答案:A
解析:X线机产生的X线能谱为连续能谱。
—He_______to the meeting. Have you informed him of it?
—Sorry. I _______to.
A.hasn’t come; am going
B.didn’t come; have forgotten
C.hasn’t come; forgot
D.doesn’t come; will have
请列示该企业依次使用了哪些税务筹划技术?