灰野鸡 幼苗
共回答了22个问题采纳率:100% 举报
1年前
沙狐698 幼苗
共回答了4个问题 举报
lengmei_651 幼苗
共回答了1218个问题 举报
力重 幼苗
共回答了1039个问题 举报
junring 幼苗
共回答了72个问题 举报
回答问题
关于情态动词的问题must have been doing 和must have done 请问 区别
1年前3个回答
must have been done must have done
must done 、must be done与must have done的区别
1年前1个回答
must have done 否定是什么?没有must not have done?用什么?
must be done和 must have done区别
must have been done/must be done
must have done ,can have done
he must have done it yesteraday,――?he must have done it for
1年前2个回答
情态动词+have done 如 could have done,must have done,should have
1年前6个回答
must have done,must do,can't have done,can't do的区别
must have done和have done有什么区别
could have done,should have done ,must have done,的区别是什么...
1年前4个回答
need have done ,must have done ,can/could have done ,should
should have done;must have done;need have done;could have do
must have done 和must have do
must have been与must have done的区别?
must have done 和must have been 的区别
must have done 和 should have done 的表示推测区别?
你能帮帮他们吗
已知两点M(-2,0),N(2,0),点P满足PM•PN=12,则点P的轨迹方程为______.
请教关于构建cdna文库载体的问题 我需要能将导入的基因表达为蛋白的表达载体
春节的英语怎么说
按读音归类:blue,bus,cup,computer,excuse,june,must,ruler,use.1/ju:
已知a^2+b^2-4a-2b+5=0 求根号a+b/根号3-2根号a 注:根号a是单独的 ,3根号3-2根号a 是全在
精彩回答
满宠字伯宁,山阳昌邑人也。年十八,为郡督邮。迁高平令。县人张苞为郡督邮,贪秽受取,干乱吏政。宠因其来在传舍,率吏卒出收之,诘责所犯,即日考竟①,遂弃官归。
下列各组词语中书写全部正确的一项是 [ ] A.涅槃 安详 惊蜇 斑驳 郑重其是 B.震撼 按摩 斑澜 料峭 展露头角 C.惆怅 融洽 缥缈 枯燥 谈笑风声 D.怂恿 镌刻 狼藉 寒暄 呕心沥血
18÷3=6,如果被除数乘2,除数不变,商是( )
叶表皮细胞、叶肉细胞、导管细胞共有的结构是 ( )
用棱长是1厘米的正方块拼成如图所示的立体图形,问该图形的表面积是多少平方厘米?