等腰梯形的一条对角线分中位线为4cm和10cm两部分,腰长为12cm,则此梯形不在同一底的两内角为( ) 度、( )度,其面积为( )cm2。
60;120;84
细菌色素有两类,它们是()
A.多色色素与单色色素
B.有毒色素和无毒色素
C.水溶性色素和脂溶性色素
D.弥散性色素和局限性色素
E.需氧色素和厌氧色素
Several diseases are believed to ______ the lives of many children annually, malaria _______.
A.claim, included
B.kill, to be included
C.be claiming, is included
D.be killing, included