关于甲亢拟血管系统表现哪项是错误的()
A.心动过速
B.早搏
C.脉压差减小
D.第一心音增强
E.臂舌循环时间缩短
参考答案:C
合同不应被分割成更小的合同从而使其不适于采用()程序。
A.有限国际招标
B.询价采购
C.国内竞争性招标
D.国际竞争性招标
It's not easy to learn English well. ________as much as possible is necessary. [ ]
A. Having read
B. Read
C. Reading
D. To have read