A.Self-confidence, hard work, higher education and a poor family.
B.Mom's encouragement, clear goals, self-confidence and hard work.
C.Clear goals, mom's encouragement, a poor family and higher education.
D.Mom's encouragement, a poor family, higher education and opportunities.
第5题
某次火灾是由铝镁合金引起的,那么这次火灾属于()。
A.A类火灾
B.B类火灾
C.C类火灾
D.D类火灾
第6题
由煤气、天然气、甲烷、乙烷、丙烷、氢气引起的火灾属于()。
A.A类火灾
B.B类火灾
C.C类火灾
D.D类火灾
第8题
《火灾分类》规定,把固体物质,如木材、棉、毛、麻、纸张等引起的火灾称为()。A.D类火灾B.C类火灾C.B类火灾D.A类火灾
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