变色有哪几种?
参考答案:
均匀变色(褪色和黄化)和不均匀变色(斑驳、花叶、条纹、条斑、条点、白化苗、明脉等)
We _____ our new neighbors yet, so we don't know their names.
[ ]
A. don't meet
B. won't meet
C. haven't met
D. hadn't met
船舶在能见度不良中航行,应减速航行,按章鸣笛、报请(),通知机舱备车。
A、船主
B、船长
C、轮机长