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【简答题】
幼儿教师的专职就是__________。
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举一反三
【单选题】The rivers and forests of the New World were ______ with fish and game.
A.
sufficient
B.
enough
C.
adequate
D.
abundant
【简答题】若是单杆活塞式液压缸差动连接时的运动速度等于有杆腔进油时的反向运动速度,则活塞杆的直径d与缸筒内径D之间的关系是d= ( )D。
【单选题】The soil in this part of the world is not rich enoug h to _____ a large population.
A.
sustain
B.
dwell
C.
conceive
D.
recoil
【简答题】液压缸在液压系统中是将 _______ 转变成 _______ 的能量转换装置。 2. 液压缸的运动形式是作 _______ 和小于 360 °的摆动 。 3. 液压缸根据液压力的作用方式不同可以分为 _______ 和 _______ 。 4. 液压力只能推动活塞杆或柱塞朝一个方向运动,此液压缸属于 _______ 液压缸。 5. 单活塞杆液压缸作为差动液压缸使用时,若使其往复运动速度相等,其活...
【单选题】The soil in this part of the world is not rich enoug to _____ a large population.
A.
sustain
B.
dwell
C.
conceive
D.
recoil
【简答题】若是单杆活塞式液压缸差动连接时的运动速度等于有杆腔进油时的反向运动速度,则活塞杆的直径 d 与缸筒内径 D 之间的关系是 d= D。
【单选题】Which of the following is true, according to the conversation?
A.
His roommate is kind enough to freeload.
B.
His roommate is reimbursing for grocery.
C.
His roommate is taking advantage of him.
D.
His roommate is not honest enough to go straight.
【单选题】有关医疗用气雾剂的抛射剂的质量要求,错误的是:()
A.
常压下沸点低于40.6℃
B.
常温下蒸汽压应小于大气压
C.
不易燃、不易爆
D.
无致敏性
E.
来源广、价格便宜
【单选题】It is quite common for a working man to make ______ for his old age by putting aside enough money to live on.
A.
adjustment
B.
supply
C.
assurance
D.
provision
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