發(fā)生觸電事故時(shí),應(yīng):()。
A、使用絕緣工具切斷電源C
暫無解析
Night________(fall),wehurriedhome.
設(shè)A為2階矩陣,P(阿爾法,A阿爾法),其中阿爾法是非零向量且不是A的特征向量
Ishallneverforget________(meet)thelatePremierZhouduringhisinspectionofourfactory.
Heaskedmewhethermybrother________(fly)toBeijing.
In1991,whilet11eeconomiesofindustrializedcountriesmetaneconomic_____,theeconomiesofdevelopingcountriesweregrowingveryfast.