专四专八考试

【单选题】
单项选择

【单选题】ACCorDing to thE mArs thEory, why DoEs thE moon ContAin littlE iron
A．thE moon FormED From piECEs oF EArth's Crust.
B．thE moon wAs struCk By AnothEr plAnEt.
C．thE moon's Composition rEsEmBlEs thAt oF mArs.
D．thE moon's minErAl ContEnt hAs ChAngED ovEr tim

【单选题】ACCorDing to thE nEws, whEthEr thE BirD Flu will CAusE A grEAt CAsuAlty DEpEnDs on______.
A．thE sEAson
B．thE wEAthEr
C．thE typE AnD loCAtion oF An outBrEAk
D．thE kinD oF BirDs

【单选题】
单项选择

【单选题】hE wAs______ For militAry sErviCE At thE AgE oF EightEEn AnD spEnt A yEAr in thE Army.
A．CAllED in
B．sEnt out
C．CAllED up
D．tAkEn on