尿血的伴随症状中多（）
A.每日排尿总量正常
B.每日排尿量低于正常
C.无尿痛
D.有尿痛
参考答案：C
With so many difficult problems ______, the newly-elected president, Obama, is to have a hard time。
A．settled
B．settling
C．to settle
D．being settled
摄氏温度和开氏温度之间的关系是：开氏温度等于摄氏温度加（）。
A.273.10
B.273.16
C.273.58
D.273.78
