在《竞争战略》一书中()提出了著名的五种竞争力量模型。
A、波特
B、钱德勒
C、魁因
D、安索夫
参考答案:A
股骨头缺血坏死时,CT诊断股骨头塌陷的征象包括()
A.股骨头皮质成角
B.台阶征
C.双边征
D.裂隙征
E.股骨头内簇状、条带状和斑片状高密度硬化影
—What do you think about the new teacher?
—________ the new teacher is an elegant lady, she can be extremely difficult to work with.
A.As if
B.As long as
C.Because
D.While