根据《担保法》,定金的数额由当事人约定,但不得超过主合同标的额的()。
A.20%
B.30%
C.40%
D.50%
参考答案:C
直肠与乙状结肠黏膜炎症表现不包括()
A.黏膜充血
B.溃疡
C.出血
D.渗出液增多
E.局部小结节
The symptoms of the disease manifested themselves ten days later.
A.eased
B.appeared
C.improved
D.relieved