侦查      侦察

①战士们刚要起身赶路，____员前来报告说：“后面有一个团的白军赶上来了。”

②我们的目的，就是想实地____一下幼龟是怎样离巢进入大海的。

如图，点A在双曲线y=$\frac{k}{x}$上，AB⊥x轴于点B，且△AOB的面积是2，则k的值是____ ．

Sydney Tower
Address: 100 Market St, Sydney
Phone: 02 9333 9222
Fax: 02 9333 9203
Open time: 9:00 a.m. t0 10:30 p.m. (Saturdays to 11:30 pm)
Ticket: $60 (for an adult) $30 (for a child)
Website: www.sydneytower.com.au
How to get there: train to Town Hall Station and a short walk along Market Street
How to book tickets: by phone/fax or through the web
Attractions: Sydney’s best views are just the beginning! Sydney Tower takes you to the highest point
above Sydney for exciting 360° view of our beautiful city.