MRI的成像基础:()
A.组织间吸收系数的差别
B.组织间密度高低的差别
C.组织间形态的差别
D.组织间弛豫时间的差别
E.组织间大小的差别
参考答案:D
She has already tried her beShe has already tried her best. Please don't be too ________ about her
job.[ ]
A. special
B. responsible
C. unusual
D. particularst
我国主要的气候类型有______、______、______、温带季风气候、高原、高山气候.