关于剪切型核酶不正确的是（） ["金属离子在反应中都是起催化作用","HDV核酶是人体细胞内发现的唯一一种具有天然核酶活性的动物病毒","锤头核酶是一类具有自我切割活性的RNA，广泛存在于植物类病毒和寄生虫中。","发夹状核酶的剪切活性比锤头结构核酶高。","剪切型核酶可催化自身或进行异体RNA的切割，其作用相当于核酸内切酶"]
Your network contains a server named Server1 that has Windows Server 2008 R2.An administrator runs the following command on Server1: netsh.exe advfirewall reset You discover that you can no longer access Server1 on port 3389.You need to ensure that you can access Server1 on port 3389.Which firewall rule should you enable？（） [" File and Printer Sharing (Echo Request ICMPv4-In)"," File and Printer Sharing (SMB-In)"," Remote Desktop (TCP-In)"," Remote Service Management (RPC)"]
液体壁纸是一种新型艺术涂料，也称壁纸漆和墙艺涂料。其性能优点有（）。 ["A.施工难度低 ","B.易清洗 ","C.造价低 ","D.无接缝，不起皮 ","E.耐水耐酸碱"]
什么是脉石矿物
创建到锚点的链接的过程分为两步：首先（），然后（）。
请比较明代建筑木构架与唐宋木构架的风格特点。
