伤寒最常见的肠道并发症是()
A.肠穿孔
B.肠粘连
C.肠出血
D.肠梗阻
E.肠套叠
参考答案:C
计算机的CPU每执行一个(),就完成一步基本运算或判断。
A.语句
B.指令
C.软件
D.程序
—Why do you like _____ English?
—Because I can _____ the American life.[ ]
A. learn; learn about
B. learning; learn about
C. to learn; tell about
D. learning; tell about