10 s at 92°C,30 s at 65°C,and 13 min at 68°C 1 cycle elongation of 20 s for each cycle怎么翻译

10 s at 92°C,30 s at 65°C,and 13 min at 68°C 1 cycle elongation of 20 s for each cycle怎么翻译 Where's Tom?He's____A at doctor B at the doctor C at the doctor's D at doctor's T/S at AT&S是什么意思 At the stationer’s. at my friend's at one's desire at one's expense at one's service at one's age at one's at Chen Ling's It's unfriendly ____others .A.point at B.pointing at C.to point at it,s hot_____chongqing______summer.A:in;at B:in;in C:at;at Look_____the map.It's a map_____China.A.at;at B.at;of C.of;of D.of;at what's three__seven.A.at B.on C.and What's this _English?A:at B:in C:on what's this english A,at B,in C,on