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【单选题】
在下列关于混凝土收缩的概念中,正确的是:( )。A.
配置钢筋限制收缩裂缝宽度，但不能使收缩裂缝不出现；
B.
为减小收缩应力，应提高混凝土强度等级；
C.
为减小收缩应力，配分布钢筋；
D.
设变形缝，可防止混凝土收缩。
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【简答题】[填空1] [填空2] [填空3] [填空4] v. 加快,促进 ac ci le rite ce rate
【单选题】Lindbergh suddenly felt hungry when he came down to Le Bourget most probably because ______.
A.
he had forgotten to prepare food for the flight
B.
fatigue had made him forget hunger earlier before landing
C.
jet lag caused his sudden hunger
D.
total concentration on the flight had stopped him from feeling hunger
【简答题】Please write down the noun of flexib le ._______________
【简答题】液柱压力计量是基于 原理的测压装置,用U形管压差计测压时,当一端与大气相通时,读数R表示的是 或 。
【单选题】It is difficult to narrow down the present digital divide because ___________
A.
leaders of poor countries have no development plan for their countries
B.
poor countries have no money to buy computers and the Internet equipment
C.
the poor country invest less on computer than on food
D.
world leaders are more concerned about such challenges as peace or disarmament
【单选题】下列关于咖啡中的基础味道描述不准确的是?
A.
咖啡的酸味会随着烘焙度加深而减弱
B.
咖啡的苦味会随着烘焙度加深而增强
C.
深烘焙的咖啡甜度一定比浅烘焙的高
D.
烘焙时间越长咖啡酸味越弱
【简答题】液柱压力计量是基于 原理的测压装置,用U形管压差计测压时,当一端与大气相通时,读数R表示的是 。
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