副对角线行列式

Block permanently Nothng is fixed or permanently stable Nothng is fixed or permanently stable还有啊,这一行英文的拼写对不对啊,如果不对请把正确的写法写上, the machine is permanently activated 同义句转换 They wanted to make Henry happy.They wanted to ＿＿ ＿＿ Henry. A fall into the pit,a gain in your wit.怎么翻译? they wanted to make old Henry happier（改为同义句） they wanted to____old Herny______. A fall into the pit,a gain in your wit.翻译 急用 【单选 倒装】Only on sundays _watch TV 求赐教!A can he Bdoes he 此题目为什么不能选择B?he only watches TV on sundays部分倒装将does提前哪里错误了?求赐教! Does he ____ (watch) TV at home on Sundays?用所给单词的适当形势填空 新牛津英语词典和新牛津英汉双解大词典在内容上有什么区别啊? have的同义词两个空 attendance office是什么意思 锨能组什么词?至少组五个！ 锨怎么组词 Both Ben and the motorcyclist were hurt.(改为否定句） Both Ben and the motorcyclelist were hurt.(改为否定句》 ------ Ben -------the motorcyclist was hurt Both of my f_____were hurt at the traffic accident,I couldn't move. Both of his_were hurt in the terrible accident.A.feetB.TeethC.fingersD.noses they make me she has emptied the basket this morning为什么不是现在完成时?书上说是一般过去式,但是怎么也应用了has+done的形式 Leage of Nations的意思? in youth 什么意思? youth ballet Wrapped youth 英语问题: 【只用that的情况: A.先行词被形容词最高级或序数词修饰 B.先行词中既有人又有物时英语问题:【只用that的情况:A.先行词被形容词最高级或序数词修饰B.先行词中既有人又有物时C.当 先行词为形容词最高级时,只用that.举例 当先行词是被形容词比较级修饰时,定语从句的引导词就可以不用that了吗? Are everyone in the classroom now?No,Helen and Mike aren't.哪里错了? Tom and Bob were saved,but __in the classroom died in the fire.A the others B other C another D the other the shortage of young adults is likely to make countries more reluctant to commit the few they have to military service.这句话的后半句怎么分析呢：“ more reluctant to commit the few they have to military service” 先行词是人的时候,前面如果有序数词或最高级修饰,后面的关系代词是用that还是who 在复合句中,当先行词前有比较级和最高级的形容词时,that和which的用法有什么变化