Coley took a(n) ______ attitude towards Prof. Stepp's studies.
A) enthusiastic C) neutral
B) positive D) questioning

A．They consider weeds to be undesirable or troublesome plant.
B．They wouldn't like to develop traditional medicines.
C．They wouldn't believe in the medical effects of weedy plants.
D．They wouldn't be satisfied with the financial returns of developing news drugs from weeds.

A．fast-growing and woody-tissued
B．slow-growing and soft-tissued
C．growing wild
D．growing where it is not wanted