关于惯性，下列说法正确的是（ ） A．在宇宙飞船内的物体不存在惯性 B．乒乓球可
题型：选择题
问题：
关于惯性，下列说法正确的是（ ）
A．在宇宙飞船内的物体不存在惯性
B．乒乓球可快速抽杀，是因为乒乓球的惯性比较小的缘故
C．静止的火车启动时速度变化缓慢，是因为物体静止时惯性大
D．惯性是指原来静止的物体一定总保持静止，原来运动的物体总保持匀速直线运动
题型：选择题
任务型阅读。
认真阅读下列短文,并根据所读内容在文章后表格中的空格里填入一个最恰当的单词.
注意:每个空格只填1 个单词.请将答案写在答题卡相应题号的横线上.
In the far north-eastern corner of South Africa, Kruger National Park is the largest
game reserve (野生动植物保护区) in the country, and the most famous wildlife zone
on the African continent. Stretching out over 7,332 square miles, Kruger is a wonderland
of wildlife. It has 507 species of birds and 147 species of mammals. It also has a fair bit
of history it dates back to 1898 when it was founded as a game reserve in an attempt to
control hunting in the area. It didn't see a tourist until 1927; however, one year later it
became a national park.
It's a good place to see roaring beasts in their own backyards. South Mrica is an
increasingly hot tourist spot, and you may want to visit it this year, before it hosts the
2010 football World Cup. South Africa is also an inexpensive country for tourists.
Anyone seeking to escape the European winter will be surprised to hear that March
is not the best time to go to Kruger.
The six-month period between May and October tends to be the most suitable time
for wildlife - spotting. The weather is not only cooler but also considerably drier. This
means that water sources dry up and animals are forced to approach rivers, creeks, dams
and watering holes in search of liquid refreshment.
If you go to South Africa, you need to pay attention to the threat of malaria (疟疾).
Kruger is one of the only two South African national parks that have an issue about the
disease, but only during the rainy season ( December to April).
A disadvantage of Kruger is that it sits a long way from South Africa's other well-known
tourist attractions Cape Town, the Garden Route, and the meeting of the Atlantic and Indian
Oceans at Cape Agulhas.
