下列哪种肿瘤对放射治疗最敏感()
A.颗粒细胞瘤
B.卵泡膜瘤
C.库肯勃瘤
D.无性细胞瘤
E.黏液性囊腺瘤
参考答案:D
30.When he came back, he found the bag he had________over the seat was gone.
A.left to hang
B.left hanging
C.to leave hung
D.to leave hanging
当汽车直线行驶时后桥无异响,转弯时后桥发出异响,可能是()有故障。
A、主动锥齿轮
B、从动锥齿轮
C、后桥内的轴承
D、差速器内部