填空题

• A. that may cause our blood vessels to become more and more narrow
• B. for pregnant women to take during their last six monks of pregnancies
• C. that their likelihood to suffer major problems is two times higher than other babies
• D. 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 during their first three months of pregnancies

ACE is a risk factor to our body ______.