如图为云南及周边区域和相关资料示意图，读图回答问题。

小明用显微镜观察洋葱表皮细胞和大的口腔上皮细胞并作了如下记录，其中正确的是（　　）

①洋葱表皮细胞中央有较大的液泡；

②口腔上皮细胞由细胞膜、细胞质、细胞核构成；

③洋葱表皮细胞中有叶绿体；

④视野中有气泡，可能是盖盖玻片时操作不当造成的；

⑤视野中光线过强时应调节反光镜和光圈；

⑥要想看到更多的细胞应换用放大倍数更大的目镜或物镜．

如图是表示吃酸梅分泌唾液的反射的反射弧结构简图，下列说法不正确的是（  ）

读图，A点的经纬度正确的是（    ）

根据短文理解，从A、B、C、D四个选项中选择最佳答案填空。

    Canada is the second largest 1 in the world. It is over 7,000 kilometres from the 2 coast (海岸）to the east. It 3 six time zones. When it is 9 a.m. in Vancouver on the west coast, it is 1:30 p.m. in St John's on the east coast.

    English and French are the two main 4 in Canada. About 60 percent of its people 5 English, and about 25 percent speak French. More than 70 percent of its population 6 in cities near the US border (边境).

    Ottawa is the capital. Every year millions of tourists go there to 7 museums and take part in the cultural 8. Toronto is the largest city of the country with about 2.5 million people. Montreal is the second biggest French-speaking city in the world.

The maple leaf (枫叶）is the 9 symbol of Canada. The Canadian 10 has a red maple leaf on a red and white background.