【单选题】
某工程需水泥360t，甲地可供100t，原价210元/t，乙地可供120t，原价220元/t，丙地可供140t，原价230元／t，则水泥的加权平均原价为【】
①
221.11元/t
②
220.00元/t
③
210.00元/t
④
230.00元/t
【单选题】
I haven’t read ____ of his books, but judging from the one I have read I think he’s a very promising writer.
①
any
②
none
③
both
④
either
【单选题】
10.Now Mike isn’t here. He _________ Mr. Green’s. Perhaps he _______ back in a few minutes.
①
went to; is coming
②
has gone to; will come
③
has been to ; will be
④
is going to; has come
【单选题】
“The Love Song of J. Alfred Prufrock” is T. S. Eliots most striking early achievement. The poem is a sort of ______monologue.
①
private
②
personal
③
dramatic
④
poetic
【单选题】
8.Do you have any idea what he meant? I really can’t ______ what he said at this morning’s meeting.
①
figure on
②
figure out
③
find out
④
find
【单选题】
8-6 图示电路中开关S闭合前电路已处于稳态，t=0时开关S闭合，则t≥0时电感的电流iL(t)= 。<img src=https://huaweicloudobs.ahjxjy.cn/C23EEEAC19BF383EA0B92B8DC6D88CC0.jpg title=Image00039.jpg alt=Image00039.jpg width=342 height=150 style=width: 342px; height: 150px;/>
①
<img class=jc-formula data-tex=7{ e }^{ -25t }A src=https://huaweicloudobs.ahjxjy.cn/2323A6A2888EB9DFA0142ECF507D6A42.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex=7{ e }^{ -t }A src=https://huaweicloudobs.ahjxjy.cn/1A895386A0F3E923A8482044A3AF3B3D.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=1.4{ e }^{ -25t }A src=https://huaweicloudobs.ahjxjy.cn/322AD29BC87C87A81E48C541E32EC55B.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex=1.4{ e }^{ -t }A src=https://huaweicloudobs.ahjxjy.cn/8B597E995F1FCB2622416D1679C23371.png style=vertical-align: middle;/>
【单选题】
物体作简谐振动，振幅为0.2m，周期为2s，当t=0时，物体在平衡位置且向负方向运动，此物体的振动方程为（）
①
0.2cos（t+3/2）
②
0.2cos（t）
③
0.2cos（/2）
④
0.2cos（）
【单选题】
在*p之前插入节点*s的操作是（）
①
q=s-next；s=p-next；
②
q-next=s；s-next=p；
③
s=p-next；q=s-next；
④
s-next=p；q-next=s；