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【单选题】
The passage implies that which of the following is true of the petrochemical means of plastic production?
A.
New advances in petrochemical plant manufacture could potentially lessen the process' reliance on fossil fuel sources.
B.
The fossil fuel resources incorporated in its products are less wasteful and environmentally damaging than the gas emissions produced by plant-based plastic production.
C.
Petrochemical plant manufacture is generally more sustainable in environmental terms than plant-based plastic production.
D.
Petrochemical plant manufacture generally depends on the most abundant fuel source available.
E.
Petrochemical plant manufacture does not share in fuel sources in common with plant-based plastic production.
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【单选题】The robot needs _____. You'd better _____. [     ]
A.
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D.
to be repaired; have it repairing
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正确
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错误
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由比例尺直接在图上量得;
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用比例直接求算;
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先求坐标再反算求水平距离;
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严密的法治监督体系
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高效的法治实施体系
【简答题】在地形图上精确确定两点间的水平距离是( )。
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A.
K+
B.
Fe2+
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Ca2+
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【单选题】.NET是一种面向网络、支持各种用户终端的( )。
A.
网络
B.
开发平台环境
C.
用户终端
D.
计算机编程语言
【单选题】卡托普利可引起下列哪种离子缺乏?()
A.
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B.
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【单选题】If you still have a headache, you’d better ________ a doctor
A.
see
B.
seeing
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to see.
D.
seen
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