Miss Jones is a () engineer than miss Smith.
A.BEST
B.bad
C.worser
D.worse
参考答案:D
MRI自旋回波序列中心肌呈中等信号强度,与横纹肌相似。
正常左室心肌厚度在收缩期比舒张期至少增加()
A.10%
B.20%
C.30%
D.40%
E.50%
蒸氨塔顶部温度:()。