【单选题】等差数列中,首项是4,公差为2.则第11项是
【单选题】a 和 b 为某集合中的两个子集,根据布尔代数的运算定律,布尔代数式 a+ab 的简化式为( )。
【单选题】Listen and Choose
B.
How to enter the university.
C.
How to register in courses and pay tuition.
D.
How to register and use a credit card.
【简答题】A.急性硬膜下血肿 B.急性脑内血肿 C.急性硬膜外血肿 D.慢性硬膜外血肿 E.帽状腱膜下血肿
【单选题】Listen and choose
A.
at 8 c'clock every morning
B.
Let's have it together
C.
A cup of milk and some bread
【单选题】a和b为某集合中的两个子集,根据布尔代数的运算定律,布尔代数式a(a十b)的简化式为( )