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你昨晚让他在这睡，今晚又不让他睡了，他当然想不通了。Giving meaning and fine coding: (quasi) experts can understand the words and terms in their own fields very quickly, and when storing information, they can consciously adopt various metacognition processing strategies./surprisedFirst of all, the 10,000-hour exercise must be targeted, with feedback and correction, but it will become mechanical repetition. The seeds sown did not grow into towering trees, but only got a pile of weeds.S? U? G? A? R? 8? 8? 6? Z beg, (don't?) Source: CCTV NetworkTime relays are divided into two types: on-time delay type and off-time delay type, and their symbols are shown in the following figure. For the power-on delay type time relay, when the coil is powered on, the power-on delay type contact acts after the delay time (the normally closed contact is opened and the normally open contact is closed), and the contact immediately returns to normal after the coil is powered off; For the power-off delay type time relay, when the coil is powered on, the power-off delay type contact acts immediately (the normally closed contact is opened and the normally open contact is closed). After the coil is powered off, the contact will not return to normal until the delay time is passed.妻为夫助，妻不贤，夫则休之。