26: The teacher encouraged everybody( to speak) more English in class. A: 对 B: 错 ...
16: If there _____ no air and water, all living creatures would die. A: is B: were C: be D: been ...
3: I ( ) ping-pong quite well, but I haven’t had time to play since the new year. A: play B: played C: have played D: am playing ...
1: It will ( ) your expectations and we offer a full guarantee for three years. A: meet B: meet with C: satisfy D: satisfy with ...
2: Response to formal invitation requires official English and ______ person. A: first B: second C: third D: all the above ...
26: 扩展IP访问列表不仅检查数据包的源地址,还要检查数据包的( ). A: 目的地址 B: 特定协议类型 C: 源端口号 D: 目的端口号 ...
4: 基本烈度是指未来50年内在一般场地条件下可能遭遇的超越概率为( )的地震烈度值。 A: 3% B: 10% C: 50% D: 85% ...
19: 自下而上的语法分析方法的基本思想是从待识别的输入串开始逐步( )到文法的开始符号。 A: 归约 B: 推导 C: 递归 D: 逆序 ...
10: 采用滞环比较方式的电流跟踪型PWM逆变电路具有下列哪些特点?( ) A: 硬件电路简单 B: 硬件电路复杂 C: 实时控制 D: 延时控制 ...
26: The computer doesn't work well, so something must have gone wrong. A: 错误 B: 正确 ...