____ the expense, I ____ a round-the-world tour.

A．Were it not … would take

B．If it were not… take

C．Weren't it for… will take

D．If it hadn't been for… would have taken

动脉的脉象特征是（）。

A.脉形短

B.沉按弦

C.脉来数而时止，止无规律

D.脉来缓而一止，止有规律

E.脉来时止，有规律