月经血不凝的原因是()
A.先凝固后纤溶
B.缺乏凝血因子
C.月经毒素抑制凝血
D.肝素的作用
E.以上均不是
参考答案:A
根据句意,用括号中所给音标或词的正确形式填空,每空填一词。
1. Mrs. White works in an office. She often [’t?u:zIz] a suit to wear.
2. I’m new here, but all my classmates are (friend) and helpful to me.
3. —Who is the (one) to come to school? —Oh, it’s Mary.
4. The boy likes eating chocolate and sweet food, so his (tooth) are getting worse.
5. This is the (player) sweater. Please give it to him.
美国纽约有一种特别的迎接新年的方式,人们直接把信件、成绩单、银行账单,或者把不开心的事情写在卡片上,投入时代广场上的一台巨大粉碎机里粉碎,从而以崭新的心情迎接新年。该做法()①否定了意识的能动作用②是人们对客观现实的虚幻的反映③体现了意识具有主动创造性④承认意识对人的生理活动具有能动作用
A.①②
B.①③
C.②④
D.③④