In1990的精選

問題詳情：In1990,_____Belgianinventorby_____nameofBakeliteinventedthefirstofthemodernplastics.A.a;a           B.a;the        C.the;a                D.the;/ 【回答】B...

問題詳情：In1990,over100countriessigned61internationalagreementtomakeitillegaltobuyorsellivory,whichismainlyusedforjewelry.Mostivoryismadefromthetusks（象牙)ofAfricanelephants.Thesetusksare   62   ...

問題詳情：AfterMandelawasfree(自由的)in1990,hechosetoshakehandswiththepeople________wantedtokillhim.A.whose             B.which            C./                 ...