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参考答案：
头盔是保护头部的装具 [1] ，是军人训练、作战时戴的帽子，是人们交通中不可或缺的工具。分为军用头盔 [6] 、警用头盔和民用头盔 [5] 等。它多呈半圆形，主要由外壳、衬里和悬挂装置三部分组成。外壳分别用特种钢、玻璃钢、增强塑料、皮革、尼龙等材料制作，以抵御弹头、弹片和其他打击物对头部的伤害。中国古代称为胄、首铠、兜鍪或头鍪。 [2] 2021年3月，江苏省市场监督管理局发布的头盔产品监督抽查结果表明，近四成头盔产品质量不合格 [7] 。
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【单选题】Riding a bike is good exercise and great fun. But what do you do with a bike after you outgrow it Nicole Basil, 12, has a terrific answer to this question. When she was 8 years old, she 46 Pedal Powe...
A.
created
B.
joined
C.
helped
D.
reformed
【单选题】Questions 36～40 are based on the following passage.Richard Satava, program manager for advanced medical technologies, has been a driving force in bringing virtual reality to medicine, where computers ...
A.
will enable surgeons to be physically present on every battlefield
B.
can raise the spirits of soldiers wounded on the battlefield
C.
will greatly improve medical conditions on the battlefield
D.
can shorten the time for operations on soldiers wounded on the battlefield
【单选题】Richard Satava, program manager for advanced medical technologies, has been a driving force in bringing virtual reality to medicine, where computers create a 'virtual' or simulated environment for sur...
A.
will enable surgeons to be physically present on every battlefield.
B.
can raise the spirits of soldiers wounded on the battlefield.
C.
will greatly improve medical conditions on the battlefield.
D.
can shorten the time for operations on soldiers wounded on the battlefield.
相关题目：
【单选题】Riding a bike is good exercise and great fun. But what do you do with a bike after you outgrow it Nicole Basil, 12, has a terrific answer to this question. When she was 8 years old, she 46 Pedal Powe...
A.
created
B.
joined
C.
helped
D.
reformed
【单选题】Questions 36～40 are based on the following passage.Richard Satava, program manager for advanced medical technologies, has been a driving force in bringing virtual reality to medicine, where computers ...
A.
will enable surgeons to be physically present on every battlefield
B.
can raise the spirits of soldiers wounded on the battlefield
C.
will greatly improve medical conditions on the battlefield
D.
can shorten the time for operations on soldiers wounded on the battlefield
【单选题】Richard Satava, program manager for advanced medical technologies, has been a driving force in bringing virtual reality to medicine, where computers create a 'virtual' or simulated environment for sur...
A.
will enable surgeons to be physically present on every battlefield.
B.
can raise the spirits of soldiers wounded on the battlefield.
C.
will greatly improve medical conditions on the battlefield.
D.
can shorten the time for operations on soldiers wounded on the battlefield.
参考解析：
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