下列有关坐骨神经痛的描述,错误的是:()
A.病人尽量避免屈膝
B.常见于成人
C.咳嗽可诱发
D.激素治疗有效
参考答案:A
集团彩铃首月免费的优惠是怎么样优惠的?
The INMARSAT system has five major components, they are:()
A.Space Segment, NCC, RCC, SES, and CES
B.Space Segment, a satellite system, C system, NCC and NCS
C.Space Segment, NCC, NCS, CES and SES
D.A system, C system, satellite system, earth stations and NCS