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【单选题】
若项目集Ik含有A→α·,则在状态k时,只有当面临的当前输入符号a∈FOLLOW(A)“将α归约为A”的动作的分析方法是____________。
A.
LALR(1)方法
B.
LR(0)方法
C.
LR(1)方法
D.
SLR(1)方法
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参考答案:
举一反三
【判断题】温度压力保持不变的情况下,惰性气体的加入会减慢反应速度。
A.
正确
B.
错误
【判断题】温度压力保持不变的情况下,惰性气体的加入会减慢反应速度
A.
正确
B.
错误
【单选题】以下哪种说法是正确的?
A.
温度压力保持不变的情况下,惰性气体的加入会减慢反应速度
B.
温度压力保持不变的情况下,催化剂会增加反应速度
C.
温度压力保持不变的情况下,催化剂会使不能进行的反应变得可以进行
D.
温度压力保持不变的情况下,催化剂会使得放热反应的放热量增加
【单选题】I have been working so hard these days for the big exam. I feel_____. I’m afraid I can’t pass it.
A.
relaxed
B.
stressed out
C.
boring
D.
well
【简答题】Big retailers pass their low prices ________ the producers.
【单选题】What does the passage mainly talk about?
A.
The big retailers and experts have forecast an individualistic,optimistic society where technology is held in very high regards.
B.
The big retailers and experts have gazed into the future and seen a new world of shopping.
C.
The big retailers and experts have recognized that the economy is buoyant and big busiess will met shoppers' demands.
D.
The big retailers and experts have predicted that consumer confidence will be low and people rely on big business for security.
【简答题】某矿石焙烧炉排出含 SO 2 的混合气体,除 SO 2 外其余组分可看作惰性气体。冷却后送入填料吸收塔中,用清水洗涤以除去其中的 SO 2 。吸收塔的操作温度为 20°C ,压力为 101.3kPa 。混合气的流量为 1000m 3 /h ,其中含 SO 2 体积百分数为 9% ,要求 SO2 的回收率为 90% 。若吸收剂用量为理论最小用量的 1.2 倍,试计算: ( 1 )吸收剂用量及塔底吸收...
【单选题】The big retailers are starting to think small, too. Sainsbury's and Tesco have launched convenience-store chains, called Local and Express, respectively—that have fast become ______ in British towns.
A.
ubiquitous
B.
established
C.
frequented
D.
known
【单选题】合成氨反应N2(g)+3 H2(g)=2 NH3(g)达平衡后,在保持温度和压力不变的情况下,加入水气作为惰性气体,设气体近似作为理想气体出来,则( )
A.
会增大,氨的含量会增大
B.
会减小,氨的含量会减少
C.
不变,氨的含量会增大
D.
不变,氨的含量会减少
【单选题】What does the passage mainly talk about?
A.
The big retailers and experts have forecast an individualistic, optimistic society where technology is held in very high regards.
B.
The big retailers and experts have gazed into the future and seen a new world of shopping.
C.
The big retailers and experts have recognized that the economy is buoyant and big business will meet shoppers' demands.
D.
The big retailers and experts have predicted that consumer confidence will be low and people rely on big business for security.
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