题目内容：
ACE is a risk factor to our body__________.
A．that may cause our blood vessels to become more and more narrow B．for pregnant women to take during their last six months of pregnancies
C．that their likelihood to suffer major problems is two times higher than other babies
D．with their doctors about how to treat their problems
E．because diabetes during pregnancy may sometimes lead to birth defects
F．though their mothers took ACE inhibitors durin~ their first three months of pregnancies
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