如何解决安装gensim时的错误？

Question

我正试图用Python3.4在Windows7上安装gensim。根据gensim official installation tutorial，gensim依赖于NumPy和SciPy，所以我去here下载用于NumPy和SciPy安装的.whl文件。但当我使用pip安装它们时，它给了我这些错误：

Traceback (most recent call last):
File "<pyshell#2>", line 1, in <module>
import gensim
File "C:\Python34\lib\site-packages\gensim\__init__.py", line 6, in <module>
from gensim import parsing, matutils, interfaces, corpora, models, similarities, summarization
File "C:\Python34\lib\site-packages\gensim\matutils.py", line 21, in <module>
import scipy.linalg
File "C:\Python34\lib\site-packages\scipy\linalg\__init__.py", line 172, in <module>
from .misc import *
File "C:\Python34\lib\site-packages\scipy\linalg\misc.py", line 5, in <module>
from .blas import get_blas_funcs
File "C:\Python34\lib\site-packages\scipy\linalg\blas.py", line 155, in <module>
from scipy.linalg import _fblas
ImportError: DLL load failed: 找不到指定的模块。

“找不到指定模块”的意思。 我该怎么解决？