问题
单项选择题
关于自带润滑油泵的增压器,说法不正确的是()。
A.滑油泵安装在转子轴两端
B.滑油泵多为齿轮泵
C.滑油泵从轴承箱吸油
D.开航前备车时无法检查自带油泵供油情况
答案
参考答案:D
解析:自带润滑油泵的增压器,在备车时通过主机的冲车与试车操作可检查其供油情况。
关于自带润滑油泵的增压器,说法不正确的是()。
A.滑油泵安装在转子轴两端
B.滑油泵多为齿轮泵
C.滑油泵从轴承箱吸油
D.开航前备车时无法检查自带油泵供油情况
参考答案:D
解析:自带润滑油泵的增压器,在备车时通过主机的冲车与试车操作可检查其供油情况。
从下列方框中选择短语并用其适当形式填空。 | |
2. He worked hard, now he ______ and confident about the coming mid-term examination. 3. We should not laugh at those who ______ just______ their failure in maths test. 4. He consistently ______ having sports whether how cold it is. 5. If you want to keep fit, you must ______ for at least one hour every day. |