结核菌素试验的原理是
A、工型超敏反应E
暂无解析
Sinceeconomicreformbeganin1978,anaveragegrowthrateofalmost10%ayearhasseenChina’sGNPnearlyquadruple.（）
Ithinkhisfailureintheexperimentresulted________hiscarelessness.
Weareinterestedintheweatherbecauseit_______ussodirectly—whatwewear,whatwedoandevenhowwefeel.
Whathetolduswasmoreofa(n)________thanareality.
Ifyouarewalkingawayfromaclocktower，youwillhearthetickingoftheclockfadetoapoint________itcannotbeheard.
