Some of the low-end made-in-China mechanical-electronic products are not selling well in export market as compared with what are termed as high-end ones.

单项选择题We don’t plan to go to the concert, and so they don’t（）.

A. so do they
B. they don’t too
C. neither don’t they
D. they don’t either

单项选择题The very real and far reaching implications inherent in the current changes being experienced by government spaceports, with terms of their effect upon the whole international space community, are also highlighted.