应力性骨折在发病多长时间内，X线检查可无明显表现()

A．4～6周

B．1～2天

C．3～4周

D．3～4天

E．1～2周

阅读下面短文，根据以下提示：1）汉语提示，2）首字母提示，3）语境提示，在每个空格内填入一

个适当的英语单词，并将该词完整地写在右边相对应的横线上。所填单词要求意义准确，拼写正确。

Dear Mr. Wang,

     I'm glad to tell you I'm back in London and how pleased I am to 1. ______ met you and your family during

my stay in your beautiful town. What pleased me most was the visit 2. ______ the museum and the old country

houses. I'd really like to keep in 3. t______ with all of you and I hope you won't mind 4. ______ (写信) to me

again. 

     In fact, I didn't have as good a journey as 5. ______ (预科). There were some weather problems, 6. ______

caused the delay of my flight. Then I had to 7. c______ planes in Berlin. And something 8. ______(令人失望的)

happened to my luggage. When I got to London, it was 9. s______ left in Berlin. Anyway, please accept my

thanks again and give my best 10. r______ to your family.

                                                                                                                                       Yours sincerely,

                                                                                                                                        Martin Jacobs