Helen was coughing because of the ________________.
A: muscle ache
B: flu
A: muscle ache
B: flu
举一反三
- Belgian blue bull: ( ) A: It is a bull grown lots of muscle because a gene is inhibited. B: It is a bull grown lots of muscle because a gene is overexpressed. C: It is a bull grown lots of muscle because a gene that is missing. D: It is a bull grown lots of muscle because a gene that is duplicated.
- Sheila fumed at Helen because Helen laughed at her.
- The most common symptoms of influenza include: a high fever, (1) nose, (2) throat, muscle pains, headache, coughing, and feeling tired.
- Cardiac muscle is different from skeletal muscle because: A: Fast Na+ Channels B: Slow Ca2+ Channels C: Presence of actin and myosin D: Na+-K+ pump
- Why can’t Helen see the man off? A: Because she is ill. B: Because she is too busy. C: Because she has gone abroad. D: Because she works in the hotel.