问题补充:
单选题It’sjustpipes,waterandpumps,butwehaven’theardofanyoneelse________thistechnologyinthiswaybefore.A.to useB.usingC.useD.used
答案:
B
时间:2022-08-26 16:52:00
单选题It’sjustpipes,waterandpumps,butwehaven’theardofanyoneelse________thistechnologyinthiswaybefore.A.to useB.usingC.useD.used
B