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【多选题】
平行加工中保证距精度的方法有( )。
A.
试切找
B.
用心轴和块规找正
C.
移动式找正
D.
调头镗孔找正
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【单选题】Tom is clever at numbers and I think he will ________ an excellent accountant.
A.
make
B.
turn
C.
appear
D.
grow
查看完整题目与答案
【单选题】听力原文：M: I'm going to the registrar first, and then to the accountant's, and after that I have to prepare my speech for tomorrow's lecture. W: Oh, I say you've got a pretty busy day, Mike. What do we k...
A.
Mike is almost as busy as she is.
B.
Mike has to go to many places.
C.
Mike has to do a lot today.
D.
Mike is busy preparing his lecture.
查看完整题目与答案
【简答题】Accountant 1: Do you have a 1 ____________ , Mr. Smith? Accountant 2: Certainly, Nancy. What can I help you with? Accountant 1: One question — how do I collect the 2 _________? Accountant 2: Actually,...
查看完整题目与答案
【判断题】避雷线和导线常用材料是一样的。
A.
正确
B.
错误
查看完整题目与答案
【简答题】如图所示为一平面简谐波在t=0时刻的波形图,设此简谐波的频率为250Hz,且此时质点P的运动方向向下,求 (1)该波的表达式; (2)在距原点O为100m处质点的振动方程与振动速度表达式.
查看完整题目与答案
【单选题】一平面简谐波的表达式为：y=Acos2π（vt-x/λ）。在t=1/v时刻，x 1 =3λ/4与x 2 =λ/4二点处质元速度之比是（）
A.
-1
B.
1/3
C.
1
D.
3
查看完整题目与答案
【简答题】Accountant 1: So, Tim, have you thought about which 1 ____________ _________ we should get? Accountant 2: Well, I’m thinking about getting PBL Unlimited. Accountant 1: Hmm...I 2 ________ _________ PBL...
查看完整题目与答案
【单选题】一平面简谐波的表达式为 .在 t = 1 / n 时刻, x 1 = 3 l /4 与 x 2 = l /4 二点处质元速度之比是( ).
A.
-1
B.
1/3
C.
1
D.
3
查看完整题目与答案
【单选题】I want to be an accountant中accountant的意思是 ?
A.
会计
B.
营销
C.
数量
查看完整题目与答案
【单选题】听力原文：Why don't I give you my accountant's number? (A) I've used him for three years. (B) No, I don't have an accountant. (C) That would be very helpful. (19)
A.
B.
查看完整题目与答案
相关题目：
【单选题】Tom is clever at numbers and I think he will ________ an excellent accountant.
A.
make
B.
turn
C.
appear
D.
grow
查看完整题目与答案
【单选题】听力原文：M: I'm going to the registrar first, and then to the accountant's, and after that I have to prepare my speech for tomorrow's lecture. W: Oh, I say you've got a pretty busy day, Mike. What do we k...
A.
Mike is almost as busy as she is.
B.
Mike has to go to many places.
C.
Mike has to do a lot today.
D.
Mike is busy preparing his lecture.
查看完整题目与答案
【简答题】Accountant 1: Do you have a 1 ____________ , Mr. Smith? Accountant 2: Certainly, Nancy. What can I help you with? Accountant 1: One question — how do I collect the 2 _________? Accountant 2: Actually,...
查看完整题目与答案
【判断题】避雷线和导线常用材料是一样的。
A.
正确
B.
错误
查看完整题目与答案
【简答题】如图所示为一平面简谐波在t=0时刻的波形图,设此简谐波的频率为250Hz,且此时质点P的运动方向向下,求 (1)该波的表达式; (2)在距原点O为100m处质点的振动方程与振动速度表达式.
查看完整题目与答案
【单选题】一平面简谐波的表达式为：y=Acos2π（vt-x/λ）。在t=1/v时刻，x 1 =3λ/4与x 2 =λ/4二点处质元速度之比是（）
A.
-1
B.
1/3
C.
1
D.
3
查看完整题目与答案
【简答题】Accountant 1: So, Tim, have you thought about which 1 ____________ _________ we should get? Accountant 2: Well, I’m thinking about getting PBL Unlimited. Accountant 1: Hmm...I 2 ________ _________ PBL...
查看完整题目与答案
【单选题】一平面简谐波的表达式为 .在 t = 1 / n 时刻, x 1 = 3 l /4 与 x 2 = l /4 二点处质元速度之比是( ).
A.
-1
B.
1/3
C.
1
D.
3
查看完整题目与答案
【单选题】I want to be an accountant中accountant的意思是 ?
A.
会计
B.
营销
C.
数量
查看完整题目与答案
【单选题】听力原文：Why don't I give you my accountant's number? (A) I've used him for three years. (B) No, I don't have an accountant. (C) That would be very helpful. (19)
A.
B.
查看完整题目与答案