A:taking off
B:taking u
C:setting off
D:setting up
选不同
①____A.cleaned B.talked C.washed
②____A.saw B.watched C.slept
③____A.yesterday B.morning C.today
④____A.clothes B.bookstore C.hotel
⑤____A.magazine B.book C.film
下列物质溶于水时,溶液温度明显降低的是( )