在粪便中能查出肺吸虫卵的原因正确的是（）。A、成虫寄生于消化道，即可进入肠腔 B、成
题型：单项选择题
问题：
在粪便中能查出肺吸虫卵的原因正确的是（）。
A、成虫寄生于消化道，即可进入肠腔
B、成虫寄生于肝胆管，排卵于肠腔
C、成虫寄生于肠腔，部分虫卵伸缩或破裂，虫卵散入肠腔
D、成虫寄生于消化道以外，因虫卵分泌物刺激，破坏组织而使虫卵进入肠腔
E、成虫寄生于消化道以外，由于宿主吞咽而使虫卵进入肠腔
题型：单项选择题
Hi Grace,
How’s it going? Sorry I haven’t emailed for a while, but I had so much to do!
I had told you about my decision to take up a sport. I knew I wasn’t fit and I wanted to get some exercises. But that wasn’t the only reason that I decided to do a sport. Students who play sports do better at school. 小题1: Exercise also helps learning and memory .
小题2: First, I tried soccer. I had played a bit of soccer before and I thought it would be too bad. I knew I couldn’t run very long without feeling tired. On the first day, I was able to run for the first ten minutes, but then I was so tired that I couldn’t even kick the ball!
Then, I tried volleyball.小题3: I was able to run for the first twenty minutes and I wasn’t the slowest runner in the team! After a few weeks, I could run faster and longer. I was doing better and feeling better. 小题4: Maybe I’m not a team sport person after all.
Finally, I tried kung fu . It’s a great sport that exercise the body and the mind. You learn to follow instructions carefully and do what you are asked to do. This is the right sport for me ! 小题5: I feel so confident that I even showed some moves to the class last week. Can you believe it?
I hope you are OK! Write and let me know what you’ve been doing!
Bye for now!
Kristie