抵押人和抵押权人应当以书面形式订立抵押合同。()
参考答案:对
I'll take my vacation later this month. I ______! [ ]
A. can't wait
B. can wait
C. can't waiting
D. can waiting
炉顶操作的好坏将直接影响化学产品和()的产量和质量。