A.I had to practice long and hard to manage those little grains of rice.
B.One thing I'll say for these things is I don't eat as much.
C.It's easy to offend people when you don't know their customs.
第1题:
A、When/get
B、Where/got
C、Who/get
D、Where/get
第2题:
第3题:
A.very, to
B.too, as to
C.too, to
D.so, to
第4题:
6、在梁的正应力公式s = M y / I中,I为梁截面对 的惯性矩。
A.形心轴;
B.对称轴;
C.中性轴;
D.形心主惯轴。
第5题:
第6题:
A、where
B、why
C、when
第7题:
第8题:
A
I'm Joe. I-m twelve years old. I like September very much. September 9th is my birthday, and my father's birthday is in September,too.We have a birthday party ev-ery year. Teachers Day is in September, too. And I can play with all my teachers. So September is my favorite. What about you?
( )21.1t is Joe's________ birthday this year.
A. twelve
B.twelfth
C. ninth
D. nine
第9题:
在梁的正应力公式s = M y / I中,I为梁截面对 的惯性矩。
A.形心轴;
B.对称轴;
C.中性轴;
D.形心主惯轴。
第10题:
10. 已知反应 (1) MnO(s) + 1/2O2(g) = MnO2(s) 的ΔrH1my (2) MnO2(s) + Mn(s) = 2 MnO(s) 的ΔrH2my 则 ΔfHym(MnO2、S) = () A.ΔrH1my-ΔrH2my B. 2ΔrH1my+ΔrH2my C. 2ΔrH1my-ΔrH2my D. ΔrH1my+2ΔrH2my