题型:选择题 Whatever achievements you have achieved, you should not be ______with them. If you ____, it isunlikely that you will make further achievements. [ ]A. satisfied; do B. content; do C. satisfied; are D. contented; are 查看答案
题型:填空题 举世瞩目的三峡水利工程大坝设计高度为185m,并于2003年6月1日开始关闸蓄水,10天内水位上升到135m,则此时大坝底部受到水的压强为______Pa.为了保持航运畅通,在大坝旁修建了船闸,它主要是利用______的原理.(取g=10N/kg) 查看答案