问题
单项选择题
U形管压力计标尺的零点设在()
(A)上部;
(B)中间;
(C)下部;
(D)随意位置
答案
参考答案:B
U形管压力计标尺的零点设在()
(A)上部;
(B)中间;
(C)下部;
(D)随意位置
参考答案:B
What is the probably relationship between the two speakers
A.
[A] Husband and wife. |
B.
[B] Manager and clerk. |
C.
[C] Teacher and student. |