有以下程序：
#include ＜string.h＞
main(int argc,char *argv[])
int i,len=0;
for(i=1;i＜argc;i++) len+=strlen(argv[i])；
printf("%d\n",len);

程序编译连接后生成的可执行文件是ex1.exe,若运行时输入带参数的命令行是：
ex1 abcd efg 10＜回车＞
则运行的结果是( )。

A．22

B．17

C．12

D．9

Microsoft’s COM is a software (146) that allows applications to be built from binary software components. COM is the underlying architecture that forms the foundation for higher-level software services, like those provided by OLE. COM defines a binary standard for function calling between components, a way for components to dynamically discover the interfaces implemented by other components, and a mechanism to identify components and their interfaces uniquely.

OLE is a compound (147) standard developed by Microsoft. OLE makes it possible to create (148) with one application and link or embed them in a second application. Embedded objects retain their original format and (149) to the application that created them. Support for OLE is built into the Windows and MacOS Operating Systems. A (150) compound document standard developed mainly by Apple and IBM is called OpenDoc.

（146）是（）

A.architecture

B.protocol

C.procedure

D.structure