在北太平洋上,某东行船舶观测到强劲的SSE真风,根据风压关系判断低压应在()
A.船舶的高纬一侧
B.船舶的前方
C.船舶的低纬一侧
D.船舶的后方
参考答案:D
So difficult ______ it to live in an English-speaking country that I determined to learn English well. [ ]
A. I have felt
B. have I felt
C. I did feel
D. did I feel
风电机组液压系统的作用()。
A.刹车
B.变桨
C.偏航刹车
D.增速