阅读短文，判断正误。
    Hello, friends! Let's go on a trip to Beijing. Beijing is the capital city of our country. It's in the north of China. There is a big square in this city. Do you know its name? Its name is Tian'anmen Square. In Beijing, you can see the Bird's Nest(鸟巢). The 2008 Olympic Games were held in it. And you can see some old buildings, such as the Palace Museum. The Great Wall is also very famous in China. It's very old and long.

柑橘主要分布于我国南方，苹果主要分布于我国北方，造成这一分布差异的主要生态因素是（    ）

阅读理解

The Grand Palace

    If there is one must-see sight without which no visit to Bangkok would be complete, it's the spectacular Grand Palace, undoubtedly the city's most famous landmark. Built in 1782 and for 150 years the home of the Thai King, the Royal court and the administrative seat of government, the Grand Palace of Bangkok continues to have visitors in awe of its beautiful architecture and complicated details, which is a proud salute(致敬) to the creativity and creativity and craftsmanship of Thai people. Within its walls were also the Thai war ministry, the state departments, and even the mint(铸币厂). Today, the complex remains the spiritual heart of the Thai Kingdom.

Important Notes about the Grand Palace

    A strict dress code applies. The Grand Palace with the Temple of the Emerald Buddha is Thailand's most sacred site. Visitors must be properly dressed before being allowed entry to the temple. Men must wear long pants and shirts with sleeves (no tank lops). If you're wearing sandals or flip-flops you must wear socks, in other words, no bare feet. Women must be similarly modestly dressed. No see-through clothes, bare shoulders, etc. If you show up at the front gate improperly dressed, there is a booth near the entrance that can provide clothes to cover you up properly (a deposit is required).

    Opening Hours: Daily 8:30-15:30

    Location: Na Phra Lan Road, Old City (Rattanakosin)

    Price Range: Tickets sold form 8:30-15:30 and cost 500 baht!One ticket includes entry to Vimanmek Palace and Abhisek Dusit Throne Hall.

现将一密闭透明的实验装置（如图甲）于晴天的凌晨置于室外，并进行24小时的气体分析测定，得出气体含量的变化曲线（如图乙），该气体是（）

There _____ a tall tree and some chairs at the back of this community.