循行中与脊柱发生联系的经脉有()。
A、足少阴胆经
B、督脉
C、足太阳膀胱经
D、足少阴肾经
E、任脉
参考答案:C, D
John thinks it won’t be long _______ he is ready for his new job.
A.when
B.after
C.before
D.since
0, 1, 3, ( ), 10, 11, 13,18
A.7
B.8
C.9
D.10