浮物曲线的代表符号式()。
A、λ
B、δ
C、θ
D、β
参考答案:D
泡性角结膜炎常见的致病微生物是
A.β溶血性链球菌
B.克雷白杆菌
C.结核杆菌
D.大肠杆菌
E.金黄色葡萄球菌
—What are they talking about?
—A new film _______ by Steven Spielberg who is a very famous director in the USA. [ ]
A. produced
B. was produced
C. producing
D. will be produced