系统性红斑狼疮(SLE)可能损害的内脏器官为
A．肾脏
B．神经系统
C．血液系统
D．心血管系统
E．以上都是
参考答案：E
根据句意填单词。
1._________ is the ninth month of the year.
2.There are twelve _________ in a year.
3. China's National Day (国庆节) is _________1st.
4._________ is your birthday? —April 3rd.
5.—How _________ are you? —I'm thirteen.
真空泵工作时偏心叶轮偏向泵壳处的压力（）
A.较远离泵壳处低
B.较大气压高
C.较大气压低
D.与大气压相同
