问题
选择题
Scientists have made a________in the search for a cure for cancer.[ ]
A. expectation
B. breakthrough
C. regulation
D. procedure
答案
答案:B
Scientists have made a________in the search for a cure for cancer.[ ]
A. expectation
B. breakthrough
C. regulation
D. procedure
答案:B
填写路由器RG中相关的路由表项
目的网络/掩码长度 | 输出端口 |
______ | S0(直接连接) |
______ | S1(直接连接) |
______ | S0 |
______ | S1 |
______ | S0 |
______ | S1 |