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A．Kitty should tell them why she was late.B．The man agreed with the woman about the he

A. Kitty should tell them why she was late.
B. The man agreed with the woman about the heavy traffic.
C. Kitty was held up by traffic.
D. Kitty was not going to come next time.

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以“冰山原则”来比喻艺术创作的外国作家是 ()

A. 莫泊桑
B. 契诃夫
C. 海明威
D. 雪莱

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蒸馏过程的危险控制要点错误的是()。

A. 易燃液体蒸馏不能用明火作热源，而应采用水蒸气或过热水蒸气加热
B. 在蒸馏易燃液体，特别是汽油、苯、丙酮等不易导电的液体时，应注意系统消除静电，将蒸馏设备、管道良好接地
C. 对于易燃、易爆物料的蒸馏，其厂房应符合防火、防爆要求，有足够的泄压面积，室内电气设备均应符合场所的防爆要求
D. 对于沸点低于30℃的物料，应采用真空蒸馏

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《煤矿安全规程》规定：煤矿井下各级配电网络电压和各种电气设备的额定电压的高压不能超过()V。

A. 20000
B. 15000
C. 10000
D. 5000

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输入微生物、人体组织、生物制品、血液及其制品或种畜、禽及其精液、胚胎、受精卵的，应当在入境前凹天报检。()

A. 正确
B. 错误

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A．Kitty should tell them why she was late.B．The man agreed with the woman about the he

A. Kitty should tell them why she was late. B. The man agreed with the woman about the heavy traffic. C. Kitty was held up by traffic. D. Kitty was not going to come next time.

以“冰山原则”来比喻艺术创作的外国作家是 ()

蒸馏过程的危险控制要点错误的是()。

《煤矿安全规程》规定：煤矿井下各级配电网络电压和各种电气设备的额定电压的高压不能超过()V。

输入微生物、人体组织、生物制品、血液及其制品或种畜、禽及其精液、胚胎、受精卵的，应当在入境前凹天报检。()

A. Kitty should tell them why she was late.
B. The man agreed with the woman about the heavy traffic.
C. Kitty was held up by traffic.
D. Kitty was not going to come next time.