电源同样也有()结构之分。
A、立式和卧式
B、AT和ATX
C、微型和中型
D、AT和ATX
参考答案:B
2Cr13的含义是碳的质量分数为()的高合金钢。
A、0.2%,铬的质量分数为13%
B、0.02%,铬的质量分数为13%
C、0.2%,铬的质量分数为1.3%
D、2%,铬的质量分数为1.3%
The new equipment ______ the disabled during the 2008 Beijing Paralympics. [ ]
A. was intended for
B. was intended to
C. intended for
D. intended to