十二经脉的命名,主要包含了下列哪些内容
A.阴阳、五行、脏腑B.五行、手足、阴阳C.手足、阴阳、脏腑D.脏腑、手足、五行E.以上均非
参考答案:C
Your shoes under the bed _____ bad. Put them in the sun, please.[ ]
A. are smelt terrible
B. smell terrible
C. are smelt terribly
D. smell terribly
如图所示二杆结构,铰结点C作用铅垂力F,二杆长度均为l,抗拉压刚度均为EA,则利用卡式定理求得C点的铅垂位移为()。
A.
B.
C.
D.