玻璃管式水位表的防护装置为（）。
A、平面玻璃
B、槽形镜
C、保护罩
D、防污
参考答案：C
The paragraphs following the passage most likely discuss which of the following
A．The remaining layers of the Sun.
B．The evolution of the Sun to its present form.
C．The eclipse of February 1979.
D．The scientists who study astronomy.
真菌多在（）水中生活
A.酸性
B.碱性
C.中性
D.硬
