封装、陶瓷封装、金属封装,而TO-92,TO-220封装的三极管可能引脚是按照BCE、CEB... 差异,特别是那些SOIC系列封装的元件,常常会遇到同是SOIC-14... 长虹SF2198满屏白回扫线,伴音正常,视放180V,字符正常,单片机,场TDA8356主块CH05T1607,TDA9370啥原因? 主要还是视放电路,看三阴极电压如何,高度控制怎样,一百八十...
2. be used to do sth被用来做某事 3. be supposed to do sth理应做某事,应该做某事 4. allow sb to do sth允许某人做某事 5. sb be allowed to do sth某人被允许...
A.to; toB.of; toC.to; onD.for; on 试题答案 在线课程 A 考查介词用法。Approach与to连用表示方法;contrary与to连用表示与…相反;句意:这个问题的解决方法和我们的期望相反。 练习册系列答案 中考复习导学案系列答案 中考复习信息快递系列答案 中考复习指导基础训练稳夺高分系列答案 ...
答案解析 查看更多优质解析 解答一 举报 这里用to do 比较合适因为这句话,我的爱好是:这是一个客观事实,用一般现在时的陈述句最为合适而用is doing sth,我正在做什么事用在这里的话,我的爱好是正在做什么,不合适求个好评~ 解析看不懂?免费查看同类题视频解析查看解答 ...
She said to herself,” I’m not good at anything.” One day after school, Rose visited Amanda. Amanda was practicing the guitar. Rose told her mom when she came back home, “I want to play the guitar!” Her mom bought a secondhand guitar for her. She tried to play it, but the ...
I want to eat. Yes, I like fish. 1. A: Nice to meet you.B: . 2. A: .B: OK! Let's eat. 3. A: .B: Eleven books. 4. A: Do you like fish?B: . 5. A: Would you like some more dumplings? B: . 违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com 精英家教...
氯化铝和金属钠反应方程式咋写 答案 如果是溶液的话 那先和水反应:2Na+2H2O=2NaOH+H2↑ 接下来氢氧化钠再和氯化铝反应:AlCl3+3NaOH==Al(OH)3↓+3NaCl 一段时间后氢氧化钠变多氯化铝耗完:Al(OH)3+NaOH→Na[Al(OH)4] 若是熔融3 Na+AlCl3(熔融)==3NaCl+Al ...
Planning to go to a gym? If you are one of those who have spent many days planning to join a gym or to attend it regularly, then why not choose some home exercise? Here are some home exercises without equipment.Jumping jacksThis one is the best home work
完形填空. My brother Frank is a clerk at a clothes store.He works very 1 hours every day.He usually 2 at six in the morning.After he brushes his 3 ,he starts to 4 for thirty minutes.He thinks running is 5 for his health.Then he has breakfast.After
Mount Huang lies Anhui Province.A. in B. to C. on A [解析]句意:黄山位于安徽省.根据一地属于另一个地方.在内部用in.两地比邻用on.两地不接壤用to.根据常识可知黄山属于安徽省,故选A