UC知道好难答英文健康题
来源：百度知道 编辑：UC知道 时间：2024/05/28 10:28:56
1.__Conception takes place in the uterus
2.__The recommerded weight gain for a woman during her pregnancy is 10-15 pounds
3.__Pre Menstrual Syndrone is cause by an increase in a woman's hormones
4.__Condoms are 95% effective against pregnancies
5.__Hormonal birth control works by stopping the release of eggs
6.__It is illegal to have sex with someone who is impared(drunk/high)
7.__500,000is the average amount of sperm releasedin one ejaculation.
8.__Women can get pregnant from pre-ejaculatory fluid
请大家帮帮忙
1. True
2. False, the recommended weight gain is 28-40lbs, scary isn't it.
3. F. The exact causes of PMS is unclear, but there's a fluctuation in hormonal levels, not only increases in hormone concentration
4. Depends on the material you're reading. I've heard anywhere from 90-99% effectiveness. Personally, I lean towards 99% (for male condoms). I think I read somewhere that female condoms are 95% effective, but don't quote me on it.
5. T. Birth control pills for women do stop the release of ova.
6. T? Not sure. It's illegal to have sex w/somebody w/out their conscious consent, so I guess it makes sense.
7. F。 There are anywhere from 50-500 MILLION sperm/ejaculation!
8. T. It's rare, the sperm have less fitness and naturally the children born would be less fit and are more likely to have defects, but pre-ejaculatory fluid does contain the first wave of sperms.