理工類-補(bǔ)全短文（3月11日）_職稱英語(yǔ)網(wǎng)校

補(bǔ)全短文

The black robin（旅鶇）is one of the world's rarest birds. It is a small, wild bird, and it lives only on the island of Little Mangere, off the coast of New Zealand. In 1967 there were about fifty black robins there; in 1977 there were fewer than ten. ________.

A、These are the only black robins left in the world.

B、Those that fail to meet the challenges will disappear early.

C、Both represent orders in the classification of life.

D、Detailed studies are going on, and a public appeal for money has been made.

【正確答案】 A

【答案解析】 前文說(shuō)的是The black robin（旅鶇）的現(xiàn)存數(shù)量和活動(dòng)地點(diǎn)。選項(xiàng)A說(shuō)的是這里成為有The black robin的唯一的地方。所以，選項(xiàng)A是合適的選項(xiàng)。

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