下列因素不会导致加热炉出现正压是()。
A、瓦斯带油或燃料油量突然增大
B、烟道挡板开得太小造成抽力不够
C、风门开得太大
D、炉子超负荷,超过炉子实际能力
参考答案:C
Although it was really a difficult task, he decided to try his best to _______ success.
A.challenge
B.host
C.approve
D.achieve
什么是创业投资基金?我国对创业投资基金有何扶持政策?