【单选题】Dr. Johnson was late because ______.
A.
there was something wrong with his car
B.
a strange man made it hard to drive
C.
he picked up the strange man
D.
the train to Glens Falls was late
【简答题】外分泌组织分为()和()两种。内分泌组织可分为()、()、()和()四类。
【简答题】内部分泌组织依组成形状和分泌物不同,可分为 、 、 和 。
【简答题】A For those who are tired doing the laundry, Samsung has found an answer: a washing machine that can tell you when your laundry is done via a smartphone app(application). Strange though it may seem — ...
【简答题】根据分泌组织分泌物是否排出体外,分泌组织可分为______和______。