选词填空[img=540x244]17e447122e0fc70.png[/img]It’s difficult to ___________ the impact of the President’s speech on the nation.
举一反三
- 正弦信号[img=83x19]17e4454e0bd5573.jpg[/img]的象函数X(s)为 未知类型：{'options': ['s+2，Re{s}>;0', ' [img=36x35]17e43aedf9e4e94.jpg[/img]，Re{s}>;0', ' [img=40x34]17e4454e15d1fc0.jpg[/img]，Re{s}>;0', ' [img=43x32]17e4454e202d3a2.jpg[/img]，Re{s}>;0'], 'type': 102}
- 正弦信号[img=79x19]17e0baa297f7d1f.jpg[/img]的象函数X(s)为 未知类型：{'options': ['s+2，Re{s}>;-2', ' [img=36x35]17e0b75220ba02f.jpg[/img]，Re{s}>;0', ' [img=40x34]17e0ba9cc664550.jpg[/img]，Re{s}>;0', ' [img=43x32]17e0ba9cd96a25c.jpg[/img]，Re{s}>;0'], 'type': 102}
- 全加器，当[img=237x34]1803a867d51d3d3.png[/img] 时， S和[img=26x34]1803a867dfa7979.png[/img]分别为（ ） A: S="0"，[img=26x34]1803a867ea577d8.png[/img]="0" B: S="0"，[img=26x34]1803a867f50bada.png[/img]="1" C: S="1"，[img=26x34]1803a867ffbacd1.png[/img]="0" D: S="1"，[img=26x34]1803a8680c08f0c.png[/img]="1"
- Laozi’s philosophy has exerted a direct impact on the following aspect of Chinese nation except__________ .
- 选词填空：6. The system looks difficult at first, but you will soon_____ it _____ .