so the sentence: Jose Canseco is still a feared batter, most pitchers don't want to face him . is correct.
If in this case: Jose Canseco is still a feared batter and most pitchers don't want to face him . that's a run_on sentence. ( in this sentence I assume "and" is correct)
Computer are becoming faster, more powerful, and more reliable, and so too are modems, they are the
devices to allow two or more compuuters to share information over regular telephone lines.
阴影部分是第一个句子,“,and”连接的是第二个句子,第二个句子中已有一个主谓完整的句子了so too are modems(虽然是倒装),这样的结构是正确的,可是接着“,”又来一个“they are”主谓完整的句子,似乎就不正确,(,不能连接2个主谓完整的句子)即run-on,所以只能是改成同位语从句。
Only one court nominee has been actually filibustered in recent times — Abe Fortas in 1968. So the threat of filibustering judicial nominees is a relatively extreme and rare one (its power comes from its potential use, not its deployment). But so too is the threat to remove the right to filibuster.
So too is the fact that far more women than men work part-time.