John Baird _________ the first TV working model in 1925.
John Baird _________ the first TV working model in 1925.
It was in the year 1925__________John Baird found a way to send pictures by wireless.
It was in the year 1925__________John Baird found a way to send pictures by wireless.
It was in the year 1925__________John Baird found a way to send pictures by wireless. A: when B: that C: on which D: which
It was in the year 1925__________John Baird found a way to send pictures by wireless. A: when B: that C: on which D: which
以下哲学家中,属于道德多元论的是( )。 A: 奥尔多·利奥波德(Aldo Leopold) B: 彼得·辛格(Peter Singer) C: 彼得·温茨(Peter Wenz) D: 贝尔德·卡利科特(Baird Callicott)
以下哲学家中,属于道德多元论的是( )。 A: 奥尔多·利奥波德(Aldo Leopold) B: 彼得·辛格(Peter Singer) C: 彼得·温茨(Peter Wenz) D: 贝尔德·卡利科特(Baird Callicott)
按照我国《化妆品卫生规范》的规定,测定化妆品菌落总数使用的培养基是 A: 营养琼脂 B: 卵磷脂吐温80-营养琼脂 C: 伊红亚甲蓝琼脂平板 D: 虎红培养基 E: Baird Parker平板
按照我国《化妆品卫生规范》的规定,测定化妆品菌落总数使用的培养基是 A: 营养琼脂 B: 卵磷脂吐温80-营养琼脂 C: 伊红亚甲蓝琼脂平板 D: 虎红培养基 E: Baird Parker平板
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