富含α-亚麻油酸的是（）
A．橄榄油
B．人造奶油
C．紫苏油
D．大豆油
E．芝麻油
参考答案：C
—Where have you been?
—I got caught in traffic; otherwise________sooner.[ ]
A. I would be here
B. I have been here
C. I had been here
D. I would have been here
两器必须通入流化介质，严防造成（）和（）。
