远距离VonGraefe法检测，检测棱镜底向下5△视标对齐，诊为（）。
A、RH5△
B、RH’5△
C、LH5△
D、LH’5△
参考答案：A
My friend Martin was very sick with a strange fever; _______, he could neither eat nor sleep.
A．As a result
B．after all
C．Any way
D．otherwise
球形油罐球壳壁厚可比相同条件下圆筒壁厚减薄近（）%，而且容积相同。
A.40
B.50
C.60
