填空题

The drugs used to prevent migraines can block the______ effects , which may cause the blood vessels to expand.

【参考答案】

beta

<上一题目录下一题>

热门试题

填空题

Some people suffer headaches on weekends because their usual eating and sleeping habits formed during the week are suddenly broken.

问答题

目前社会存在着迷信文凭现象2．造成这一现象的原因3．我对此的观点Is a Diploma Everything